1Version 1.6.0rc1:
2- GSSAPI authentication is not chosen automatically anymore, you have to
3  request it manually.
4- Libidn is not required for IDN support anymore on systems where getaddrinfo()
5  supports the AI_IDN flag and the GnuTLS version is >= 3.4.0.
6- Add From: and Date: headers if they are not present in the mail, as required
7  for sendmail/postfix/exim/ssmtp/... compatibility. The From: header uses the
8  envelope from address and optionally a full name set by the -F option.
9- Add proxy_host and proxy_port commands and corresponding options to use a
10  SOCKS proxy.
11- Remove the obsolete tls_force_sslv3 command and --tls-force-sslv3 option from
12  the documentation. They are still accepted by msmtp for compatibility, but
13  have no effect anymore.
14- Disable SSLv3 in addition to SSLv2.
15- passwordeval: Remove \r in addition to \n from command output, for Windows
16  systems.
17
18Version 1.4.32:
19- A recipient list on the command line is now parsed as if it appeared in a
20  mail header.
21
22Version 1.4.31:
23- Updated the msmtpq script.
24- Fixed building of the documentation with texinfo >= 5.0.
25
26Version 1.4.30:
27- Fix a bug in msmtp_read_addresses() that was introduced in version 1.4.29 by
28  fixing a problem in the wrong way.
29
30Version 1.4.29:
31- Fix bugs in msmtp_read_addresses(), including a crash.
32- Removed autotools files that are automatically copied by 'autoreconf -i'
33  from repository.
34- Properly require an argument to --passwordeval. Fixes a crash when none is
35  given.
36- Replace old service name "ssmtp" with current one: "smtps".
37
38Version 1.4.28:
39- Update autotools files.
40- Improve error message on connection failures in some IPv6/IPv4 situations.
41- Improve documentation of EHLO issues.
42- Bug fix: expand tilde for the aliases command.
43
44Version 1.4.27:
45- Always use the internal MD5 functions for the built-in CRAM-MD5
46  implementation; never use the ones from OpenSSL. This fixes problems with
47  configurations that use OpenSSL and do not use GNU SASL. Thanks to Gleydson
48  Soares and Moritz Wilhelmy for providing information and for testing the fix.
49- Fix a compiler warning with current OpenSSL versions.
50
51Version 1.4.26:
52- Fix serious bugs in the msmtpq script. To update to the new version of the
53  script, you need to remove the old msmtpQ symlink, change msmtpQ to msmtpq
54  in your MUA config, and use msmtp-queue for queue management.
55
56Version 1.4.25:
57- Fix DIGEST-MD5 authentication, accidentally broken in 1.4.23.
58- Deprecate DIGEST-MD5 authentication as per RFC 6331.
59- Add support for alias expansion via the aliases command and --aliases option.
60- Fix various typos in error messages and the documentation.
61
62Version 1.4.24:
63- Remove the unmaintained pt_BR translation.
64- Simplify manual license: use a simple permissive license instead of GNU FDL.
65- Replace a call to gnutls_protocol_set_priority(), which is deprecated in
66  GnuTLS >= 2.12.0. Fixes Debian bug #624048 (reported for mpop).
67- Remove gnulib, for simplicity and maintainability.
68- Update GNU autotools files, in particular configure.ac.
69
70Version 1.4.23:
71- Fix SCRAM-SHA-1 authentication via libgsasl. Reported and analyzed by
72  Steffen Lehmann for mpop.
73
74Version 1.4.22:
75- Update gnulib to 2010-12-23.
76- Avoid different account selection behaviour in --pretend mode, and print more
77  informational messages about account selection in --pretend and --debug mode.
78  Suggested by Adam Spiers.
79- Add a new passwordeval command and --passwordeval option, to set the password
80  from the output of a command. Written by Martin Stenberg.
81- A few documentation improvements, suggested by Andries E. Brouwer.
82
83Version 1.4.21:
84- Report platform in --version output.
85- Update gnulib to 2010-07-03.
86- Fix building with newer OpenSSL versions. Reported and tested by Peter Baur.
87- Updated find_alias_for_msmtp.sh script (Ovidiu Constantin).
88- Fixed building without TLS/SSL support. Reported by Tan Ker Vin.
89
90Version 1.4.20:
91- Update gnulib to 2010-03-20.
92- Support authentication mechanism SCRAM-SHA-1 via GNU SASL.
93- New command tls_fingerprint to trust one particular TLS certificate.
94- Change whitespace: Avoid tabs and whitespace at end of lines.
95- Update the documentation of keyring usage.
96- Add the msmtp-gnome-tool.py script to manage Gnome Keyring passwords for
97  msmtp. Thanks to Gaizka Villate and Emmanuel Bouthenot.
98- Fix minor quoting issues in the man page.
99- Add pt_BR translation, provided by Rudá Moura. Thanks!
100
101Version 1.4.19:
102- Properly handle NUL characters in the Common Name or Subject Alternative
103  Name fields of certificates when using OpenSSL. This fixes the security
104  problem described in <http://www.blackhat.com/presentations/bh-usa-09/
105  MARLINSPIKE/BHUSA09-Marlinspike-DefeatSSL-PAPER1.pdf>.
106- Properly mask minus characters in the man page to prevent groff from
107  converting them to hyphens. Reported by Emmanuel Bouthenot.
108- Disable security checks on the user configuration file when run as root.
109  Fixes Debian bug #534829.
110- Remove DOS line endings from find_alias_for_msmtp.sh. Reported by Emmanuel
111  Bouthenot.
112
113Version 1.4.18:
114- Update gnulib to 2009-09-07.
115- Use proper binary prefixes when handling sizes.
116- Scripts msmtpq and msmtpQ: do not hardcode IP address of www.google.com when
117  testing connectivity. Use host name instead. Closes Debian bug #538328.
118- Make the option -v an alias for -d/--debug, for compatibility with other
119  implementations of the sendmail interface. Closes Debian bug #487272.
120- Add find_alias_for_msmtp.sh script by Jim Lofft.
121- Update gnulib to 2009-08-02.
122- Increase SMTP_MAXCMDLEN so that it is large enough to handle the potentially
123  very long lines generated by the GSSAPI authentication method.
124- Update gnulib to 2009-03-07. Remove gnulib modules fseek/fseeko/lseek because
125  they cause errors on MinGW: files opened with "r+" cannot be written to.
126  Provide our own fseeko instead if it does not exist; see configure.ac.
127- Use "netrc" as SYSNETRCFILE, not ".netrc". Reported by Jim Pryor.
128- Use more gnulib modules to remove more W32 workarounds from the source.
129- Add missing gnulib module strerror for meaningful error messages on W32.
130
131Version 1.4.17:
132- Remove most W32-specific code from net.c and use the appropriate gnulib
133  modules instead.
134- Gnulib upate to 2008-12-24.
135- Unified handling of the Gnome and MacOS keyrings. Both are disabled by default
136  and must be enabled using --with-*-keyring options.
137- Support for SYSCONFDIR/netrc (as a fallback for ~/.netrc) was added by Jim
138  Pryor. Thanks!
139- Support for the GNOME Keyring was added by Satoru SATOH. Thanks a lot!
140- Added a vim syntax file for msmtprc files to scripts/vim. The file was
141  written by Simon Ruderich. Thanks!
142- Updated the msmtpq/msmtpQ scripts.
143
144Version 1.4.16:
145- Changed all scripts to '#!/usr/bin/env bash' instead of '#!/bin/sh' or
146  '#!/bin/bash', because they use bash features that are not available in POSIX
147  /bin/sh and because bash might not live in /bin, e.g. on BSD systems. This is
148  a quick fix for Debian bug #489635.
149- Accept both 250 and 251 in return of the RCPT TO command, as required by RFC
150  2821 sections 4.3.2 and 3.4. Reported and fixed by Matthias Bernhardt.
151  Thanks!
152- Fix scripts/msmtpqueue/msmtp-runqueue.sh. An error made while applying a
153  patch accidently broke it. Reported by Thomas Weber. Thanks!
154
155Version 1.4.15:
156- Added the new tls_crl_file configuration command and the corresponding
157  --tls-crl-file option.
158- Added the new tls_min_dh_prime_bits configuration command and the
159  corresponding --tls-min-dh-prime-bits option. This closes Debian bug
160  #440344.
161- Added the new tls_priorities configuration command and the corresponding
162  --tls-priorities option.
163- Gnulib upate to 2008-06-02. Use getpass-gnu instead of getpass module.
164- Add msmtpq scripts by Chris Gianniotis to the scripts directory. Suggest
165  them as a replacement in the README of the msmtpqueue scripts.
166- Do not let getpass() read from stdin, because we read the mail from there.
167  Reported by Karol Lewandowski. Thanks!
168- Updated the set_sendmail script by Gautam Iyer. Thanks!
169- Return EX_TEMPFAIL instead of EX_DATAERR in case of  4xx replies to the MAIL
170  FROM, RCPT TO and DATA commands. Reported by Kent Vinther Friis. Thanks!
171
172Version 1.4.14:
173- Add support for the SMTPSERVER and EMAIL environment variables. These
174  variables are used when no other configuration is available. Suggested by
175  Jari Aalto.
176- Add the --read-envelope-from option, which extracts the envelope from address
177  from the From: header.
178- Fix a typo in the man page.
179- Add support for Resent-* headers to the -t/--read-recipients option. Fixes
180  Debian bug #464474, reported by Tim Abbott.
181- Buffer read operations also when TLS/SSL is active. Fixes performance problems
182  with GnuTLS, reported by Dimitrios Apostolou for mpop.
183- Fixed a potential problem with VPATH builds.
184- Updated gnulib to 2008-02-26. Imported havelib module.
185- Always log smtpstatus and smtpmsg, even in case of success. Suggested by
186  Bruno De Fraine.
187- Use locale-independent c_toupper() instead of toupper() to avoid problems
188  with the tr_TR.UTF-8 locale. Reported by S.Çağlar Onur. Thanks!
189- Updated gnulib to 2008-02-15. Imported c-ctype module.
190- Support for the Max OS X keychain was added by Jay Soffian. Thanks a lot!
191- Fix network input/output timeouts for W32. Bug reported and fixed by
192  Shoorick for mpop. Thanks!
193
194Version 1.4.13:
195- Added the set_sendmail.sh script by Gautam Iyer to the new scripts
196  subdirectory.
197- Added the msmtpqueue scripts to the new scripts subdirectory.
198- Make the search of an account by the envelope from address case insensitive.
199  Problem reported and fixed by Brandon Philips.
200- Update the license of the source code to GPLv3 or later, and change the
201  license of the documentation to the GFDLv1.2 or later.
202- Gnulib update to 2007-07-15.
203
204Version 1.4.12:
205- Handle the special envelope from address MAILER-DAEMON correctly: send
206  "MAIL FROM:<>" instead of "MAIL FROM:<MAILER-DAEMON>". Reported by
207  André Egerer.
208- Improve the documentation for TLS vs. SSL. Thanks to Carlos Martín Nieto for
209  suggestions.
210- Add documentation on how to find the right CA certificate for
211  tls_trust_file. Thanks to Bryan Kam for suggestions.
212
213Version 1.4.11:
214- Require either tls_trust_file or tls_certcheck=off for TLS sessions, so that
215  msmtp is not silently vulnerable to man-in-the-middle attacks.
216- Do not use NTLM authentication automatically anymore unless TLS is active.
217  NTLM is not an open standard and must therefore be considered broken.
218- Gnulib update 2007-04-07.
219- Move build-aux files to separate directory build-aux.
220- Provide a hstrerror() function for systems that lack getaddrinfo(), so that
221  gethostbyname() must be used instead, and do not provide hstrerror()
222  themselves. Needed for Solaris 2.6. Reported and tested by Chris Green.
223
224Version 1.4.10:
225- Updated copyright info to 2007.
226- Gnulib update to 2007-01-10.
227- From mpop: Switch to autoconf-2.61 and automake-1.10, to avoid problems with
228  configure trying to run "sh /usr/bin/install" where /usr/bin/install is not a
229  shell script on NetBSD. Reported by Jeremy C. Reed.
230- From mpop: Remove the obsolete "extern int errno;" declaration. It does not
231  conform to POSIX and causes trouble. Thanks to Jeremy C. Reed for the patch.
232- Added AC_SYS_LARGEFILE to configure.ac, for large file support. Removed the
233  unnecessary AC_C_CONST and AC_HEADER_STDC.
234
235Version 1.4.9:
236- Remove gnulib module nanosleep. This fixes more build problems.
237
238Version 1.4.8:
239- Gnulib update. There are no local changes anymore.
240- Do not use nanosleep() on W32 anymore. Use Sleep() instead.
241  Do not use nanosleep() on DJGPP anymore. Use usleep() instead.
242- Update gettext files to gettext-0.16.
243- Improved the configure check for the OpenSSL libraries. This fixes a build
244  failure on Mac OS X. Reported by Michael Williams, who also tested the fix.
245  Thanks!
246- Fix a bug in string_replace(). This bug did not affect msmtp.
247- Gnulib update. Removes the initialization of pkgdata_DATA from
248  gnulib/Makefile.am, thanks to a fix by Bruno Haible. 'make install' will no
249  longer create an empty directory $(pkgdatadir) anymore (the default for
250  $(pkgdatadir) is /usr/local/share/msmtp). Reported by Roman Bogorodskiy.
251
252Version 1.4.7:
253- Gnulib update. The nanosleep module still differs from the official gnulib
254  source.
255- Disable SSLv2 because it has known flaws. This only affects the OpenSSL
256  version because GNU TLS does not implement SSLv2.
257- Add new command tls_force_sslv3 and option --tls-force-sslv3 to force
258  TLS/SSL version SSLv3. This is needed to use SSL with some old and broken
259  servers. Closes Debian bug #374610, reported by Marko Mäkelä. Thanks to
260  Julien Louis for tracking this problem down and testing the patch.
261- Changed detection of libgnutls so that it works with version >= 1.2.0 again.
262- Improvements for the build system:
263  - Quote arguments of M4 macros.
264  - Use AC_LIB_HAVE_LINKFLAGS to detect libraries. Do not use *-config scripts
265    or pkg-config. This avoids problems that are reported in this thread:
266    http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/
267    1610/focus=1610 .
268  - Use HAVE_LIB* macros instead of USE_* or others, for consistency.
269- Link with LIB_NANOSLEEP as determined by the gnulib nanosleep module. This
270  fixes build problems on Solaris. Reported by Daniel Rechsteiner. Thanks!
271- Update to gettext-0.15.
272- W32/DJGPP: Assure that all files are opened in binary mode. This seems to
273  also apply to socket connections, therefore it is necessary.
274- Fix error message typo in check_account().
275- DJGPP port: include missing header <fcntl.h> in msmtp.c
276- Sync from mpop:
277  - Adapt --version output to the latest GNU conventions.
278  - Clean up #includes.
279  - Renamed os_env.[ch] to tools.[ch].
280  - Replace __MINGW__ with W32_NATIVE in os_env.h.
281
282Version 1.4.6:
283- Updated README.
284- Minor documentation improvements.
285- Do not set a default port for LMTP, because none is officially defined.
286- Update gettext files to gettext-0.14.5.
287- Another gnulib update, with the additional sys_select module and a patch to
288  the nanosleep module. See the mailing list gnulib-bugs for these patches
289  that are not (yet?) part of the official gnulib.
290- Gnulib update.
291- Improved --help text output.
292- Improved error messages when logging to a logfile fails.
293- Sync from mpop:
294  - Enable network connection timeouts on DJGPP/Watt32. Thanks to Gisle Vanem
295    for pointing out that this works just like it does with UNIX. The
296    DJGPP/Watt32 port is now on par with the UNIX port.
297  - Update README.dos.
298  - Don't check configuration file permissions on Cygwin.
299  - Renamed README.win32 to README.w32. Updated README.w32 and README.dos.
300  - Replace '#ifdef _WIN32' with '#ifdef W32_NATIVE', where W32_NATIVE is
301    defined in config.h if the following is true:
302    '#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__'.
303    The reason is that Cygwin defines _WIN32 nowadays, but we want the UNIX API
304    on that platform.
305  - Include config.h in list.c.
306  - Fix warnings emitted for configure.ac by autoreconf.
307  - lock_file(): If another process holds a lock on the file, then wait 1/10
308    second instead of 1 second before the next try.
309  - Gnulib update. Added nanosleep module.
310  - Improve error handling for file locking: differentiate between timeouts and
311    other errors.
312  - Improve checks for libraries in configure.ac. The ./configure options have
313    changed! See INSTALL for more info.
314  - Improve --version output.
315  - Add (optional) support for Internationalized Domain Names (IDN) via
316    GNU Libidn.
317  - Initialize TLS only if pop3_connect() succeeded.
318  - Move SSL_LIBS and GSASL_LIBS into LIBS; do not put them in Makefile.am.
319  - Fix memory leak in GNU SASL variant of pop3_auth().
320    (This change applies to smtp_auth(), GNU SASL variant.)
321  - Fix memory leak in GnuTLS variant of tls_cert_info_get().
322  - pop3_auth(), GNU SASL variant:
323    - Check if authentication data is complete before trying to start
324      authentication.
325    - Never call password_callback() when no user name is given.
326    (This change applies to smtp_auth(), GNU SASL variant.)
327  - Prevent a double free if an invalid argument to the auth command is given.
328  - Prevent a double free if an invalid argument to --auth is given.
329  - Replace crypto.[ch] with gnulib hmac-md5 module.
330  - Gnulib update. Add hmac-md5 module.
331  - net.c, tls.c: allow all network operations to be interrupted with CTRL+C,
332    and print an appropriate error message in this case.
333    (This change does not affect msmtp.)
334  - tls.c: if an error occurs, clean up *after* building the error message. This
335    fixes a potential segfault in the OpenSSL version of tls_start().
336  - net_open_socket(): don't let net_close_socket() clobber errno.
337  - net_open_socket(): print correct error message if getaddrinfo() returns
338    EAI_SYSTEM.
339  - Fixed comment in net.h.
340  - net_get_canonical_hostname(): Only call freeaddrinfo() if getaddrinfo()
341    succeeded. Reported and fixed by Raúl Núñez de Arenas Coronado.
342    (This change does not affect msmtp.)
343- Update copyright message.
344- Gnulib update.
345- Minor Win32 portability/cross-compilation updates.
346- configure.ac: Rely on PKG_CHECK_MODULES to find GSASL, do not fall back to
347  manual detection, to prevent using an incompatible version of GSASL.
348  Problem reported by Jari Aalto.
349- Gnulibs sysexit_.h now defines EX_OK; there's no need to use a locally
350  modified version anymore.
351- Use a locally modified version of gnulibs sysexit_.h that defines EX_OK to
352  0, since the gnulib maintainers apparently won't fix this file.
353  Include the sysexits.h header after all other system headers to override
354  previous definitions of EX_OK on systems that use EX_OK for other purposes.
355  This is needed on Interix, reported by Ben Collver.
356
357Version 1.4.5:
358- gnulib update.
359- adapted configure.ac for new pkg-config version
360- Use gnulib socklen module for socklen_t.
361- Lock the logfile.
362- W32/DJGPP: Use all files/streams in binary mode.
363- W32: Allow %HOME% to override default user configuration directory.
364- W32: Enable getpass and netrc functionality.
365- Use gnulib getpass module since it now works on Win32.
366- Shut down a GnuTLS TLS session with GNUTLS_SHUT_WR instead of
367  GNUTLS_SHUT_RDWR. This prevents session hangs in certain situations.
368  It is safe to do this because we never reuse a connection when TLS was shut
369  down. Thanks to Jens Kammler for the problem report!
370- Do not rely on a failing malloc setting errno in xalloc_die()
371- Make the GnuTLS code accept old version 1 CA certificates when verifying
372  certificates.
373- Renamed LOCK_(READ|WRITE) to OSENV_LOCK_(READ|WRITE) in os_env.[ch] to avoid
374  name clashes with <fcntl.h>
375
376Version 1.4.4:
377- gnulib update
378- Renamed the --disable-win32-ipv6 configure option to
379  --enable-win2000-and-older, because it applies to more than just IPv6
380  support.
381- Retry gnutls_handshake() when the non-fatal error E_INTERRUPTED occurs.
382- Properly handle OpenSSL errors that occur due to interrupted system calls:
383  retry the operation.
384- Removed the OpenSSL exception note from the license information. This was
385  necessary because msmtp uses GPL'ed gnulib modules.
386- Added "accepted but ignored" support for the sendmail -F option (set real
387  name of sender). Vixie-cron uses this. Reported by Luca Graf.
388- Updated README. Removed README.gsasl.
389- Removed README.hpux because it was outdated (the getaddrinfo() problems were
390  patched long ago).
391- Reduce calls to net_puts()/tls_puts() by avoiding to send "\r\n" in an extra
392  call. Append "\r\n" to the string instead (if necessary).
393  A side effect is that the TCP CRLF ("\r\n") appears in the --debug output.
394  This was done for smtp_get_msg(), too, for consistency.
395- Avoid system call in net_puts() when there's no data to send
396- Whitespace fixes
397
398Version 1.4.3:
399- gnulib update
400- Allow empty envelope from addresses. --from="" does not unset the
401  envelope-from address anymore. An envelope-from address will only be created
402  automatically when the new command auto_from (or option --auto-from) is set
403  to "on".
404  This closes Debian bug #318138, reported by Richard Thrippleton. The fix was
405  suggested by Julien Louis. Thanks!
406- Update netrc.c from fetchmail-6.2.6pre4 (no significant changes)
407- msmtp.1, msmtp.texi: Explicitly state that authentication must be activated
408  in the documentation of the user and password commands.
409
410Version 1.4.2:
411- gnulib update
412- Fixed memory leaks in msmtp_read_recipients() and msmtp_get_loginfo().
413- Big merge from mpop:
414  - Fix error messages for network input/output timeouts. This affects reading
415    and writing raw sockets, OpenSSL connections, and GnuTLS connections.
416  - Replace the connect_timeout setting with a timeout setting that not only
417    applies to connection attempts but also to input/output operations.
418    msmtp still accepts the --connect-timeout option and connect_timeout
419    command as aliases, though they were restricted to connection attempts.
420  - Added a new function lock_file() to os_env.[ch], used for platform
421    independent file locking. [Not used in msmtp].
422  - Added gnulib module xvasprintf. Use xasprintf where appropriate to
423    avoid the need for static buffers with unknown required length.
424  - Simplifications:
425    - eliminate some error conditions by using safe fallbacks
426    - don't print special error messages when the system setup is
427      obviously completely broken
428  - Updated all occurrences of the address of the FSF (all .h and .c files,
429    configure.ac, COPYING, msmtp.texi)
430  - Added german translation
431  - Improved some error messages
432  - Added gettext support
433  - Let gcc know about unused variables to suppress warnings. The UNUSED macro
434    used for this purpose is written into config.h. The logic that defines it
435    to be empty when the compiler is not a recent gcc was taken from
436    coreutils-5.2.1.
437  - Show the canonical hostname and network address of the server in
438    --serverinfo output (only if these informations are available).
439  - Renamed paths.[ch] to os_env.[ch] and added new function get_username().
440    This function is now used by msmtp_construct_env_from().
441- Added an advanced example of Mutt macros for switching accounts,
442  contributed by Thomas Baruchel
443- Minor documentation improvements
444- Let gcc print format warnings for print_error() in msmtp.c and
445  smtp_send_cmd() in smtp.c
446- Remove superfluous password nulling in msmtp_password_callback()
447- Some whitespace / style fixes
448- Clarification and fixes of comments in paths.c
449- Fixed error detection for strtol(): LONG_MAX is a valid return value if
450  errno != ERANGE (errno must be reset before strtol).
451- When the protocol is LMTP and the server does not accept the LHLO command,
452  don't fall back to HELO. HELO is for old SMTP servers only; LMTP servers
453  must support LHLO.
454
455Version 1.4.1:
456- gnulib update
457- Don't call gnutls_record_send() in the GnuTLS version of tls_puts() when
458  there is no data to send, and properly detect failing tls_puts() and
459  net_puts() calls in smtp_put().
460  This fixes a bug where msmtp silently strips blank lines from mails when
461  compiled with GnuTLS. The bug also prevented msmtp from detecting certain
462  output errors.
463  Thanks to Jesse Michael for identifying, reporting, and fixing this bug.
464- Some typo fixes in the documentation
465- Updated README.dos to reflect recent improvements in the DJGPP port of
466  OpenSSL.
467- Removed the requirement for the configuration file to be a regular file.
468  This allows tricks like msmtp -C<(echo "host ..."...) again.
469  Closes Debian bug #306904.
470- Changed read buffer counter in net.[ch] from ssize_t to int. This fixes
471  compilation on FreeBSD (ssize_t was unkown in net.h; unistd.h had to be
472  included). Reported by Roman Bogorodskiy.
473- Corrected documentation: the netrc syntax is described in netrc(5) or
474  ftp(1).
475- Fixed a problem when using an IP address as a host name on certain old
476  Windows systems without configured DNS: The gethostbyname() function may not
477  be able to handle IP addresses. Work around this by trying inet_addr()
478  first. Original report and patch by Dirk Heinemann.
479  Note that newer Windows systems (XP and up) have getaddrinfo() and are
480  therefore not affected by this problem.
481
482Version 1.4.0:
483- gnulib update
484- Correctly handle null characters in the input by replacing fgets() with
485  stream_gets() and fputs() with fwrite()
486- Do tilde expansion for the following options, in case the shell did not do
487  it: --tls-trust-file, --tls-key-file, --tls-cert-file, --logfile
488- Make the OpenSSL code accept self signed certificates in the default mode
489  (tls_cert_check on, tls_trust_file unset). This should have been in 1.3.6, but
490  I forgot one case. The GnuTLS code always did this.
491  Reported by Luis A. Florit.
492- Fixed a memory leak in the tempfile() function.
493- Improved SMTP command pipelining:
494  1. Limited the number of pipelined SMTP commands to SMTP_PIPELINE_LIMIT
495     (currently 100) to avoid exceeding the TCP windows size when sending
496     to *lots* of recipients.
497  2. Pipeline the DATA command in addition to MAIL FROM and RCPT TO.
498     This saves one round trip. Hooray!
499  Both changes affect smtp_send_envelope() only. This function was rewritten.
500- Only send the QUIT command in the following two situations:
501  - the SMTP session ended normally
502  - msmtp cannot proceed with the SMTP session because the SMTP server lacks a
503    feature
504  On all other errors, don't bother to send QUIT, just abort the session.
505- Handle To, Cc, and Bcc headers case insensitive (allow for example CC and
506  BCC). Reported by Michael D Henderson. Thanks!
507- Accept CRLF line ends in the mail (both header and body). Suggested by
508  Michael D Henderson. Thanks!
509- Accept CRLF line ends in the configuration files.
510- Fixed --read-recipients long option: it wrongly required an argument.
511  Reported by Michael D Henderson. Thanks!
512- Fixed the dsn_return and dsn_notify commands: they now accept the argument
513  "off", as documented. Patch by Maciej Bliziński. Thanks!
514- Minor documentation changes
515- Changes taken from mpop:
516  - Improved network input/output, including input buffering. Initiated by
517    Dimitris Apostolou.
518  - net_gets()/tls_gets() now return the length of the string, and
519    net_puts()/tls_puts() now take a length argument. This saves some strlen()
520    calls. Original patch by Dimitris Apostolou.
521
522Version 1.3.9:
523- Added support for .netrc
524- Minor documentation changes
525- Log user name if authentication is used (suggested by Jim Fohlin)
526- An account from the system configuration file cannot be partially changed in
527  the user configuration file anymore; it must be replaced completely instead.
528- Added missing connection timeout documentation.
529- Implemented LMTP. LMTP can be activated with the protocol command or
530  --protocol option. Adapted the setting of the default port. Removed "SMTP"
531  from some error strings that are also valid for LMTP.
532- Minor fix in net.c: net_open_socket() could have wrongly reported success in
533  very obscure situations.
534- Allow an empty string as domain parameter; don't use NULL
535- Updated AUTHORS
536
537Version 1.3.8:
538- Moved setting of default port from conf.c to msmtp.c. Setting a port in a
539  "defaults" section should now work correctly.
540- For all commands and options that accept the argument "on": also accept
541  no argument, an treat that the same as "on".
542- Moved lib to gnulib and m4 to gnulib/m4
543- Use gnulib module sysexits.h
544- Replace xmalloc.[ch] with gnulib module xalloc
545- Simplify crypto.[ch]: Always use gnulib md5. This avoids error checking that
546  was necessary because of the libgcrypt code.
547- Fixed some pedantic compiler/lint warnings
548- Minor output format changes
549- Rewrote the OpenSSL specific hostname matching code:
550  - It only allows one form of wildcard in the certificate name: "*." as the
551    two leftmost characters. See the comment for hostname_match() in tls.c
552    for the reasons for this.
553  - It does not require memrchr() anymore, therefore the gnulib memrchr module
554    was removed.
555  - It does not break with "tcc -b" anymore.
556- Close the temporary file as soon as possible in msmtp_sendmail()
557- Only replace characters for which iscntrl() returns true with question marks
558  in msmtp_sanitize(). Replacing every character for which isprint() is false
559  is too restrictive. Now UTF-8 is passed through.
560- Minor documentation improvements. The texinfo documentation now contains
561  a section "Environment / Files", which was previously only in the man page.
562- Added missing const qualifiers
563- Fixed temporary file handling on Win32. This means that -t/--read-recipient
564  now works properly on Win32.
565- Fixed error handling for the temp file used by msmtp_read_recipient().
566  One fix is for a potential segfault in case of temp file io errors.
567- Changed the tempfile() function to create a file that is automatically
568  deleted when closed, thus eliminating the need to return the file name.
569  This required a mkstemp+unlink replacement for DOS/Windows (see paths.c).
570- Replaced the DEFAULT_SYSLOG_FACILITY macro with the
571  get_default_syslog_facility() function.
572- The default values from a defaults section in a system configuration file
573  are not valid in the user configuration file anymore, to prevent changes in
574  the system configuration file from breaking user setups.
575- sanitize more strings before printing or logging them
576- fixed compilation on systems that don't have socklen_t, for example MacOS X
577
578Version 1.3.7:
579- Better authentication error messages
580- Be more strict when checking the port/--port argument
581- Added the new connect_timeout command and --connect-timeout option. Suggested
582  by Jim Fohlin.
583- configure.ac: only try to find GNU SASL manually if pkgconfig is not found
584- Added specialisation to account definitions. See documentation of the
585  account command and the example files. Suggested by Jim Fohlin.
586- Added a password callback function that reads a password via getpass() if
587  needed. Suggested by lots of people.
588- Added a user configuration file permission check: It must have no more
589  permissions than 0600. Suggested by lots of people.
590
591Version 1.3.6:
592- Added new, completely rewritten documentation in texinfo format.
593  Also distribute the generated html and pdf formats.
594- Added a "defaults" command. Suggested by Jim Fohlin.
595- Accept "AUTH=" as an alternative to "AUTH " in EHLO response. There are
596  still some broken servers that use "AUTH=". Reported by Multik.
597- Added authentication mechanism EXTERNAL (both built-in and via GSASL).
598- Updated GnuTLS dependency to 1.2.0.
599- Accept self-signed certificates in the certificate chain in the default
600  settings (tls_cert_check on, tls_trust_file unset).
601  This only affects the OpenSSL code; the GnuTLS code did it already.
602- Improved the OpenSSL certificate name check (host name versus the
603  subjectAltNames or the common name of the peer certificate). The
604  improvements were partially taken from libesmtp-1.0.3r1, Copyright 2001-2004
605  Brian Stafford, Released under the LGPL.
606- Fixed ACC_SYSLOG constant in conf.h. (Jim Fohlin)
607- Add SSL_CFLAGS and GSASL_CFLAGS to CFLAGS in configure.ac. Should fix
608  compilation on various systems, including RH9. (Jim Fohlin)
609- the --dsn-notify and --dsn-return options don't accept empty arguments
610  anymore
611- moved md5_hmac function from smtp.c to the new crypto.c file
612- When neither GnuTLS nor OpenSSL is used, always use the gnulib MD5
613  implementation, even if the BSD MD5 API is available. The gnulib md5.h
614  header shadows the system md5.h header, and trying to solve this results in
615  a mess that isn't worth it.
616  This fixes compilation with --disable-ssl on a system with the BSD MD5 API.
617- changed the --from option: an empty argument unsets the envelope from
618  address now
619- Do not ignore open errors on user configuration files specified with
620  -C/--file.
621- Display configuration file loading information with --pretend, too (not just
622  with --debug). Fixed display of this information in case of an unknown home
623  directory.
624- gnulib update
625- use automake 1.9.4
626
627Version 1.3.5:
628- minor man page cleanups
629- forbid empty arguments for the following commands: auth, tls,
630  tls_certcheck, tls_starttls, keepbcc, dsn_notify, dsn_return
631- removed unnecessary and broken detection of DJGPP systems in configure.ac
632- changed the following options from having an optional argument to having a
633  required argument: --auth, --tls, --tls-certcheck, --tls-starttls, --keepbcc
634- changed the from command: an empty argument is now accepted and unsets the
635  envelope from address
636- changed the domain command: an empty argument is now accepted and unsets the
637  EHLO domain
638- always contruct an envelope from address if none is given
639- added a maildomain command and --maildomain option
640- added a sylog command and --syslog option
641- added a system wide configuration file: SYSCONFDIR/msmtprc. Set SYSCONFDIR
642  with the --sysconfdir configure option.
643- check if DSN is available as soon as possible in msmtp_sendmail()
644- fixed a bug in the dsn_notify configuration file command: it stopped parsing
645  of the configuration file
646- allow empty configuration files
647- don't require recipients when --pretend is used
648- splitted main() in parts
649
650Version 1.3.4:
651- Fixed built-in CRAM-MD5 authentication. The error was introduced when
652  switching to the gnulib base64 implementation. Reported by Martin Hauke.
653- Use getservbyname() to get the default port for smtp or ssmtp. Use
654  25/465 as fallback.
655- added authentication to msmtp_rmqs()
656- don't test if requested auth mech is compiled in when --serverinfo is used,
657  because --serverinfo does not use auth
658- the SHA1 and MD5 fingerprints of the peer's certificate were added to the
659  certificate information output
660- --serverinfo: always print port number
661- cleanups in conf.[ch]
662- fixed the setting of the default port
663- fixed several memory leaks reported by valgrind
664- minor changes in the man page
665- killed prototype for nonexistant function from conf.h
666- use AM_CPPFLAGS = -I$(top_srcdir)/lib in src/Makefile.am and change
667  #include <md5.h> to #include "md5.h" in smtp.c to solve the MD5 build
668  issues. Also replaced #include "../lib/base64.h" with #include "base64.h"
669  and killed the #ifdef'ed inclusion of "getopt.h" in msmtp.c: always include
670  <getopt.h>
671
672Version 1.3.3:
673- replaced the GnuTLS check in configure.ac with the AM_PATH_LIBGNUTLS macro
674  that comes with GnuTLS
675- reorganized the man page
676- added the Remote Message Queue Starting mode of operation (--rmqs, RFC 1985)
677- fixed the --pretend option:
678  - it now prohibits the execution of msmtp_serverinfo() even if --serverinfo
679    was given
680  - the printed configuration contains only the information that is actually
681    used: DSN settings, envelope from address and other information is only
682    printed when sendmail mode is active
683- Added functions to get information about peer's certificate.
684  This information is printed by --serverinfo and if --debug is used.
685  This code requires a fix in gnutls_x509_crt_get_dn_by_oid() that is only
686  available in GnuTLS newer than the 2005-01-05 snapshot of what will become
687  1.1.23.
688- OpenSSL code in tls.c: allow Common Names of arbitrary length during
689  certificate check
690- minor cleanups in net.c, tls.c, and msmtp.c
691- improvements to the Windows mkstemp() replacement function in paths.c
692- fixed a potential segmentation fault in DOS/DJGPP specific code in tempfile()
693
694Version 1.3.2:
695- fixed segfault bug in find_account_by_envelope_from(): it was not checked
696  if the from address of an account is != NULL before doing a string comparison.
697  Reported by Jan Kanty Palus.
698- minor cleanup in find_account*() functions
699- Removed TODO from distribution
700- added the field 'conffile' to account_t for better error messages in
701  msmtp.c
702- added the field 'mask' to account_t and adjusted conf.c and msmtp.c
703  accordingly
704- Do not set GSASL_AUTHZID in GNU SASL authentication code. Only use
705  GSASL_AUTHID. GSASL_AUTHZID caused DIGEST-MD5 to fail.
706- Require GNU SASL >= 0.2.4, because it contains a new DIGEST-MD5
707  implementation.
708- Replaced base64.[ch] and md5_algo.[ch] with the gnulib modules base64 and
709  md5. Moved md5_hmac() from md5_apps.c into smtp.c and removed md5_apps.[ch].
710  Updated man page and AUTHORS accordingly. Removed README.md5.
711- fixed interpretation of the SIZE SMTP service extension: no number means no
712  information, 0 means no limit (RFC 1653).
713- updated print_conf output (printed with --debug and --pretend) to match new
714  configuration scheme
715- added info about required libraries to README
716- updated TODO
717- fixed comment on msmtp_read_recipients() in msmtp.c
718
719Version 1.3.1:
720- fixed -t option address parsing; it was completely broken and didn't even
721  catch all example cases from the RFC 2822 Appendix.
722
723Version 1.3.0:
724- minor changes to some documentation files (AUTHORS, README.dos, ...)
725- The auth command is now required to activate authentication. It is not
726  sufficient to use user/password anymore. This allows switching off
727  authentication with --auth=off
728- The tls_* properties can now be changed without activating tls. This allows
729  switching TLS off with --tls=off.
730- Added a command line long option for every configuration file command
731- Changed log file information: Instead of conffile/account (which can now be
732  overridden on the command line and thus has no meaning anymore), print
733  host=%s tls=on|off auth=on|off from=%s
734- Imported the gnulib module getopt: long option support for all platforms
735- reactivated xmalloc.c to make the code more readable
736- Support for the sendmail -t option (read additional recipients from the
737  To, Cc, Bcc headers of the mail). This needs to create a temporary file for
738  the mail headers.
739- Use the same version of md5_apps.* that mpop uses
740- Accept sendmail options.
741  1. msmtp options that had to be changed because they collided with sendmail
742     options:
743     -p => -P
744     -F => -C
745     -v and -h were deleted.
746  2. additional supported sendmail options:
747     -t (read additional recipients from To, Cc, Bcc)
748     -N (dsn_notify)
749     -R (dsn_return)
750     -X (set logfile)
751  3. ignored options: a lot.
752- Rewrote the "Using msmtp with Mutt" section of the man page. Updated
753  Mutt+msmtp.txt and msmtprc.example.
754- You can choose the account using the -f/--from option:
755  If you use -f/--from but not -a/--account, the first account of the
756  configuration file that has a matching envelope from address will be used.
757  Thanks to Bernhard Walle and others for the idea.
758- Rewrote expand_tilde() (from paths.c)
759- Error handling: eliminated merror.[ch]. Replaced it by an int return value
760  and an additional argument 'char *errstr' where necessary. Various minor
761  changes to error messages. Eliminated static buffer in tls.c.
762- Allow sending of SMTP commands longer than 510 characters (SMTP_MAXCMDLEN).
763  This is necessary for GSSAPI authentication.
764- Added support for GSSAPI authentication with GNU SASL
765- Added support for the ntlmdomain configuration command used by NTLM
766  authentication.
767- Check if the SMTP server supports a requested AUTH mechanism before sending
768  an AUTH command. Changed both GNU SASL and built-in code.
769- Updated the GNU SASL code in smtp.c to use the new API of GNU SASL 0.2.0.
770  The code will not work with 0.1.x anymore.
771- Improved error message when the SMTP server sends an invalid reply
772- Updated Mutt+msmtp.txt and msmtp.1
773- Portability improvement: added missing declaration of h_errno to net.c.
774  Thanks to Marco for reporting this.
775- New configure option --disable-win32-ipv6 to disable IPv6 on Windows and thus
776  build binaries that run on any Windows version, not just XP and newer. See
777  the updated README.win32 file. Thanks to Thomas Davies for pointing out this
778  problem.
779
780Version 1.2.4:
781- Changed return code in case of authentication error from EX_DATAERR
782  to EX_NOPERM
783- Changed return code in case of missing/invalid configuration file or
784  nonexistent account from EX_NOINPUT/EX_DATAERR to EX_CONFIG
785- Test return value of localtime(3) in msmtp_log()
786- Windows specific code in net.c: moved translation of error code from
787  WSAStartup() from net_lib_init() to wsa_strerror()
788- OpenSSL specific code in tls.c: minor cleanup in openssl_io_error()
789- Always keep control of the format string in calls to merror(). (There
790  were four cases where the result of strerror() was passed as the format
791  string in smtp.c.)
792- Clarified usage instructions of merror() in merror.h
793- Check at initialization time whether support for a manually requested
794  authentication mechanism is compiled, *before* establishing a network
795  connection.
796  This required a change from smtp_auth_caps() to the (equally trivial)
797  smtp_authmech_is_supported() function.
798  Made the output of both "not compiled in" messages (TLS and auth mech)
799  consistent.
800  The return code for these error conditions is EX_UNAVAILABLE now.
801- Make the output of -h/--help and -v/--version consistent with the GNU
802  utilities by including copyright and no-warranty notice (version) and
803  a short description and the bug report address (--help).
804- Add missing declarations of optarg and optind to msmtp.c, needed for
805  getopt() handling. No compiler complained so far, though.
806- Fixed stupid error in smtp.c that prevented the detection of output
807  errors when sending the RCPT TO command (highly unlikely to occur).
808- Cosmetic change in -v/--version output that avoids lines longer than
809  80 characters
810- Fixed some man page typos
811- Fixed typos in conffile.c error message
812- Fixed typo in tls.c error message (OpenSSL code only)
813- Changed error messages: "bla [blub]" -> "bla: blub"
814- Improved some TLS error messages
815- Corrected short description in man page, README and code comments
816- Updated README.dos
817
818Version 1.2.3:
819- documentation updates
820- The -v/--version option now prints information about the supported
821  authentication methods
822- The tls_* commands and the auth mechanisms ntlm and digest-md5 are now
823  allowed in the configuration file even if msmtp is compiled without
824  support for TLS or GSASL. An error message will only appear only if you
825  actually try to make use of a feature not compiled in.
826- The GNU SASL code does not expect support for digest-md5 or ntlm (or
827  any other mechanism) in the library anymore. It just works with what's
828  supported. This means you can now use the packaged versions of GNU SASL
829  from Gentoo and Debian sarge.
830- Switch from gsasl_client_step_base64() to the newer gsasl_step64()
831  in the GNU SASL authentication code
832- Martin Hauke added README.hpux
833- updated automake files to version 1.8.5
834- configure.ac: check that pkg-config exists before trying to use it
835- configure.ac: try to check for GNU SASL using pkg-config (if available)
836- configure.ac: improved detection of network settings.
837- configure.ac: improved checks for OpenSSL and GnuTLS
838- configure.ac: fixed display of warning when neither OpenSSL nor GnuTLS
839  is found and --disable-ssl was not explicitly used
840- updated README.win32, README.dos
841- Use getaddrinfo() on Windows (but not gai_strerror()). This enables
842  IPv6 support for Windows.
843- clarified an error message in tls.c (only OpenSSL affected):
844  "cannot establish TLS connection" changed to "TLS handshake failed"
845
846Version 1.2.2:
847- set *error_msg to NULL in smtp_auth() and smtp_send_mail() to prevent
848  possible segfaults in the calling function
849- correctly handle mails whose last line lacks a newline character (the
850  missing character will be added)
851- smtp error messages are sanitized before printed in an error message or
852  to the logfile: non-printable characters (!isprint(c)) are replaced with
853  a question mark.
854- corrected a problem where the "exitcode=..." field in the logfile said
855  EX_SOFTWARE though the exitcode was in fact something different
856- do not expect an SMTP response to end with '\n'; clarified comment about
857  smtp_get_msg() (Ralph Siemsen)
858- added a "mailsize=..." field to the logfile
859- added a "smtpmsg='...'" field to the logfile
860- added a "errormsg='...'" field to the logfile
861- the dash (-) as a logfile name causes logging to standard output
862- removed all `...' quoting from error messages: `bla' -> bla
863- updated documentation
864
865Version 1.2.1:
866- don't use -n option for echo in configure.ac, because it is not portable
867- reduce calls to printf() in msmtp_serverinfo()
868- correctly handle configuration files in which the last line does not end
869  with a newline character
870- update MD5 implementation to the version from popa3d-0.6.4.1, which has
871  a small fix (msmtp was not affected).
872
873Version 1.2.0:
874- changed output of -v,--version
875- made TLS/SSL support optional: --disable-ssl disables it.
876- moved md5.[ch] to md5_apps.[ch]
877- added MD5 implementation by Solar Designer (files md5_algo.c and
878  md5_algo.h). It only gets used when
879  - GNU SASL is not used and
880  - GnuTLS is not used and
881  - OpenSSL is not used and
882  - the C library does not implement MD5.
883  See README.md5.
884- print all debugging info to stdout (the SMTP session was printed to
885  stderr before).
886
887Version 1.1.3:
888- cosmetic changes in configure.ac
889- cosmetic change in --serverinfo output
890- new command: logfile (see man page)
891- new option -i, which is ignored for compatibility with mail(1)
892- made smtp_msg_status() available through smtp.h because the new
893  logging code needs it
894- documentation updates
895- translate SMTP_EINVAL to EX_DATAERR instead of EX_SOFTWARE in
896  exitcode_smtp() in msmtp.c
897
898Version 1.1.2:
899- changed the net_getline() and tls_getline() funtions to the slightly
900  different net_gets()/tls_gets() functions to clean things up and
901  prevent minor possible bugs
902- various minor cleanups and portability improvements
903- updated documentation. msmtp now accepts the example configuration
904  file ;-)
905
906Version 1.1.1:
907- many minor cleanups
908- fixed a bug where error messages might get overwriten by further
909  error messages in msmtp.c
910- tls_nostarttls now also changes the default port to 465 (ssmtp).
911
912Version 1.1.0:
913- restructured everything to use a new error handling scheme
914- restructured TLS interface
915- rewrote SMTP protocol implementation
916- added SMTP PIPELINING support
917- added new option -S, --serverinfo, which prints information about the
918  SMTP server.
919- changed option -f, --file to -F, --file
920- added new option -f, --from to set the envelope from address. The from
921  address does not need to be set in the configuration file anymore.
922  The command line address overrides the configuration file setting.
923- removed check for vasprintf() in configure.ac; it is not used anymore
924- removed check for strcasecmp() in configure.ac
925- the tilde expansion now uses getpwuid() when $HOME is not set on UNIX
926
927Version 1.0.0:
928- correctly handle certificate chains in tls.c GnuTLS code
929- added tilde expansion to configuration file filenames (expand_tilde()
930  in path.c)
931- return EX_IOERR instead of other exit codes on read errors in esmtp.c
932- case insensitive parsing of EHLO response
933- fall back to HELO if EHLO fails
934- removed check for vsnprintf() in configure.ac
935- updated automake
936- removed names of failed functions from error messages (Example:
937  "cannot get system time [time(): %s]" -> "cannot get system time [%s]")
938- slightly improved error messages in net.c
939- minor man page improvements
940- updated README.gsasl
941
942Version 0.7.2:
943- minor man page improvements
944- additional eror check in smtp_copy_mail()
945- removed unneeded msmtp.h
946- moved cram_md5.* to md5.* and renamed cram_md5() to hmac_md5()
947- cleaned up conditional compilation of base64.c and md5.c
948- documentation updates
949- cleaned up configure.ac
950- new files paths.[ch] for OS dependend path functions
951- added support for MinGW to build native Win32 application -- see README.win32
952- added support for DJGPP to build native DOS application -- see README.dos
953- fixed a bug in tls.c: wrong test for RAND_status() (OpenSSL code).
954  This only affected the new DOS port (see next point).
955- added code to seed the OpenSSL pseudo random number generator. This code is
956  only used when OpenSSL cannot seed the PRNG itself. This means the code is
957  probably only ever used on DOS.
958
959Version 0.7.1:
960- new command 'domain' to set the EHLO parameter
961- new options --pretend and --debug (thanks to David MacMahon)
962- minimal change in --version behaviour: print package name, not name of binary
963  file
964
965Version 0.7.0:
966- Added support for DSN (Delivery Status Notification) via the new configuration
967  commands 'dsn_return' and 'dsn_notify' (changes in conffile.[ch], msmtp.c,
968  esmtp.[ch])
969- configuration: added 'tls_nocertcheck' which disables all server
970  certificate checks (changes in conffile.[ch], msmtp.c, esmtp.[ch], tls.[ch]).
971- configuration: renamed 'nostarttls' to 'tls_nostarttls'
972- documentation updates
973- fixed a minor bug in an OpenSSL error report
974- minor --help text change
975- minor cleanups in conffile.c
976
977Version 0.6.6:
978- fixed building on Solaris (and maybe other systems)
979
980Version 0.6.5:
981- License clarification: msmtp is released under the GPL with the additional
982  exemption that compiling, linking, and/or using OpenSSL is allowed.
983- Updated tls.c and cram_md5.c to work with gnutls >=1.0.0 and libgcrypt
984  >=1.1.90. The code will not work with older versions anymore!
985- Use gethostbyname() in net.c if getaddrinfo() is not available. This allows
986  msmtp to be compiled on older systems and systems that don't have proper IPv6
987  support, for example Cygwin.
988- Accept arbitrary long input lines in the mail (new function smtp_copy_mail()).
989  The MUA is responsible for the RFC conformance of mails (no line longer than
990  998 characters).
991- improved error messages in case of SMTP responses that are too long
992- improved error messages in tls.c
993- increased SMTP buffer size in esmtp.c
994- Make check of return code of vasprintf() more portable in xmalloc.c
995- cleaned up esmtp.h
996- changed --help text
997
998Version 0.6.4:
999- fixed a bug in conffile.c
1000- report missing arguments in conffile.c
1001
1002Version 0.6.3:
1003- man page improvements
1004- reset error_lines to NULL in merror.c in print_error_lines() to allow
1005  further calls to add_error_line() (not yet needed in msmtp)
1006- free memory in case of tls_init() failure in msmtp.c
1007- fixed --disable-gsasl configure option
1008- #include <unistd.h> in msmtp.c because Mac OS X has getopt() there (Randolph
1009  Fritz). (This applies to all systems that don't have getopt.h).
1010- return EX_OK instead of 0 in some functions in esmtp.c
1011
1012Version 0.6.2:
1013- added support for GNU Autotools (Christophe Nowicki)
1014- the GNU getopt sources are no longer included; msmtp will fall back to short
1015  options when getopt_long is not available (Christophe Nowicki)
1016- fixed a bug in the certificate check/verification code that prevented
1017  msmtp from accepting a wildcard in the Common Name (CN) field (this
1018  affected only the OpenSSL version of the code)
1019- wrapped some lines in the man page (example section)
1020- updated documentation
1021
1022Version 0.6.1:
1023- free x509_cert in OpenSSL code of tls_cert_check()
1024- always check x509_subject common name for hostname matching in OpenSSL code
1025  of tls_cert_check() (like the GnuTLS code does).
1026- improved CN/hostname matching in OpenSSL code: it is now case insensitive
1027  and allows the * wildcard as the left-most character in the CN (RFC 2595)
1028- check for x509_subject == NULL in OpenSSL code of tls_cert_check()
1029- moved tls_init()/tls_deinit() from smtp_send() to main()
1030- removed tls dependencies from net.c
1031- change comments/code/documentation to read GSASL instead of GnuSASL
1032
1033Version 0.6.0:
1034- Added GnuTLS/libgcrypt support to tls.c and cram_md5.c
1035  You can now choose whether you want to use GnuTLS/libgcrypt or OpenSSL
1036  for TLS support and CRAM-MD5 authentication (see Makefile).
1037- Added sanity checks of server certificate when using TLS.
1038- Added the tls_trust_file command.
1039  This enables strict verification of the server certificate.
1040- Added tls_key_file/tls_cert_file commands.
1041  These commands enable msmtp to send a client certificate to the server if
1042  requested.
1043- Optional support for GSASL. When used, it replaces the built-in
1044  PLAIN, LOGIN and CRAM-MD5 authentication code and adds support for
1045  DIGEST-MD5 and NTLM.
1046- The EHLO response is now taken into account:
1047  - The STARTTLS command will only be sent if the server supports it
1048  - If no authentication method was specified, the best one that is supported
1049    by the server will be chosen.
1050- Removed the ability to choose the TLS method with the tls command. This was
1051  not completely implementable with GnuTLS (since it lacks SSLv2 support afaik)
1052  and is unnecessary anyway. The best method available is automatically chosen.
1053- Changed configuration file parsing: Now arguments may contain spaces and may
1054  be enclosed in double quotes (to allow leading or ending blanks in an
1055  argument).
1056- Reorganized Makefile to support the new configuration options (GSASL/GnuTLS).
1057- Removed unnecessary #includes from cram_md5.c
1058- Updated documentation
1059
1060Version 0.5.3:
1061- Fixed RFC2821 violations in the "MAIL FROM:" and "RCPT TO:" commands.
1062- Fixed RFC2487 SHOULD-clause violation: Now send EHLO again after
1063  successful TLS handshake.
1064
1065Version 0.5.2:
1066- fixed stupid bugs in base64dec() and cram_md5() that sometimes caused
1067  CRAM-MD5 authentication to fail.
1068
1069Version 0.5.1:
1070- man page corrections and improvements
1071- improved error messages
1072- moved msmtp.html to msmtp.1.html
1073
1074Version 0.5.0:
1075- Switched from commandline configuration to a configuration file
1076  (~/.msmtprc). This improves security (no authentication data on the
1077  commandline) and allows easy setup of multiple accounts.
1078  The only options are --help, --version, --file, --account now.
1079
1080Version 0.4.2:
1081- Security fix: delete username and password information from the commandline
1082  after they have been extracted, so that this information is not visible per
1083  ps / top anymore.
1084  It is still possible to see the length of the authentication information via
1085  /proc/pid/cmdline in Linux.
1086  The real fix is to move all sensitive data into a configuration file. This
1087  is planned for 0.5.0.
1088
1089Version 0.4.1:
1090- improved error handling in non-TLS net i/o
1091- the code that removes the Bcc header was updated to conform to RFC 2822,
1092  section 2.2.3. It now allows continued Bcc header lines to start with ' ' or
1093  '\t' (previously only '\t' was allowed).
1094- properly close TLS connection at the end of smtp_send()
1095- minor cleanups
1096- minor man page improvements
1097
1098Version 0.4.0:
1099- changed the short version of --keep-bcc to -k (as documented in the man page)
1100- cleaned up the choice of the authentication method in msmtp.c
1101- changed tls_start() to use tls_io_error() for SSL_connect() errors
1102- fixed a segfault bug with failing tls_start() that was introduced in 0.3.1
1103- added --nostarttls option (Kai)
1104- updated man page to clarify the use of optional arguments (Kai)
1105
1106Version 0.3.1:
1107- code cleanups
1108- documentation improvements
1109- --help text improvements
1110- added instructions on how to find out system specific settings to the
1111  Makefile
1112- changed tls.[ch] to hide OpenSSL specific details.
1113- improved TLS input/output error reporting
1114- fixed a minor bug in the error handling of tls_start()
1115- improved error reporting in smtp_get_response()
1116- fixed minor off-by-one bug in smtp_put() (the check for the return value of
1117  vsnprintf() was wrong). This bug would have been triggered if you used an
1118  extremely long username for authentication (longer than ca. 950 characters).
1119
1120Version 0.3.0:
1121- remove Bcc header by default
1122- added --keep-bcc to keep the Bcc header.
1123- fixed handling of lines beginning with a dot
1124- added GNU getopt source for systems that don't have it
1125- added xvasprintf/xasprintf() to xmalloc.c
1126- cleaned up xmalloc.c
1127- changed merror.c to use xvasprintf()
1128- open_socket() improvements (now uses getaddrinfo() for protocol independence
1129  and portability)
1130- Makefile changes (support for more platforms)
1131- documentation updates
1132
1133Version 0.2.6:
1134- added support for IPv6
1135- documentation update
1136
1137Version 0.2.5:
1138- fixed handling of optional arguments for short options
1139- fixed error handling for gethostbyname()
1140- minor documentation changes
1141- renamed smtp.[ch] to esmtp.[ch]
1142- improved error reporting in smtp_auth_plain()
1143
1144Version 0.2.4:
1145- minor error message changes
1146- minor documentation changes
1147- cleanups in tls.c
1148- error handling changes and fixes in tls.c
1149- fixed potential problems reported by NetBSD's lint(1)
1150- moved choice of secure authentication method from smtp.c to msmtp.c
1151
1152Version 0.2.3:
1153- changed behaviour of --auth: does not accept 'none' anymore,
1154  no argument means choose a *secure* method.
1155- changed behaviour of --tls: does not accept 'any', 'none'
1156  anymore, no argument means choose best method available.
1157- documentation updates and minor changes
1158- minor Makefile tweaks
1159- now use die() to exit in case of memory allocation failure
1160- minor tls.c cleanups
1161- fixed stupid minor bug regarding base64dec()
1162
1163Version 0.2.2:
1164- minor change to the Makefile
1165- minor change to the man page
1166- minor changes to unify error messages
1167- close connection on errors in smtp_send()
1168
1169Version 0.2.1:
1170- support for AUTH PLAIN
1171- documentation fixes, updates and cleanups.
1172- fixed memory leak in smtp_auth_login()
1173- fixed stupid bug regarding base64enc()
1174- clean up smtp_auth_cram_md5()
1175
1176Version 0.2.0:
1177- AUTH CRAM-MD5 support
1178- new option (--auth) to choose the authentication method
1179- support for --version and --help if one of them is the only argument
1180- documentation fixes / improvements
1181- better error messages
1182- Makefile fixes
1183
1184Version 0.1.1:
1185- documentation updates / fixes
1186- better error handling in start_tls()
1187- adjust MAX_SMTP_LINELEN in smtp.c
1188