1 2 3 K N O W N B U G S I N S E N D M A I L 4 (for 8.6.5) 5 6 7The following are bugs or deficiencies in sendmail that I am aware of 8but which have not been fixed in the current release. You probably 9want to get the most up to date version of this from FTP.CS.Berkeley.EDU 10in /ucb/sendmail/KNOWNBUGS. 11 12* "SYSERR: openmailer(local): fd 1 not open" message 13 14 File descriptor 1 (standard output) should not be closed during normal 15 processing. This is checked periodically, and sometimes this condition 16 is found and this message is produced. Sendmail repairs the problem, 17 and the mail is still delivered, but I still don't know why it happens. 18 (There was a bug that was fixed in 8.6.beta.13 that might be related, 19 but I think this bug still exists.) 20 21* Null bytes are not handled properly. 22 23 Sendmail should handle full binary data. As it stands, it handles 24 any value from 0x01-0xFF in the body and 0x01-0x80 and 0xA0-0xFF in 25 the header. Notably missing is 0x00, which would require a major 26 restructuring of the code -- for example, almost no C library support 27 could be used to handle strings. 28 29* Route-addrs missing angle brackets. 30 31 There are cases where route-addrs do not get angle brackets around them, 32 such as in the "-r" flag on mailers or in the From_ line created when 33 mailing to files. 34 35* Duplicate error messages. 36 37 Sometimes identical, duplicate error messages can be generated. As 38 near as I can tell, this is rare and relatively innocuous. 39 40* No "exposed users" in "nullrelay" configuration. 41 42 The "nullrelay" configuration hides all addresses behind the mail 43 hub name. Some sites might prefer to expose some names such as 44 root. This information is always available in Received: lines. 45 46* $c (hop count) macro improperly set. 47 48 The $c macro is supposed to contain the current hop count, for use 49 when calling a mailer. This macro is initialized too early, and 50 is always zero (or the value of the -c command line flag, if any). 51 This macro will probably be removed entirely in a future release; 52 I don't believe there are any mailers left that require it. 53 54* If you EXPN a list or user that has a program mailer, the output of 55 EXPN will include ``@local.host.name''. You can't actually mail to 56 this address. It's not clear what the right behaviour is in this 57 circumstance. 58 59* REDIRECT aliases don't work with `n' option. 60 61 If you have option `n' set when you use newaliases and have 62 REDIRECT addresses in your aliases file, you'll get the error 63 messages during the newaliases instead of when email is sent to 64 the address in question. The workaround is to turn off the `n' 65 option. 66 67* owner-* alias that uses :include: broken. 68 69 If you have aliases set up as: 70 71 owner-listname: :include:/some/file 72 73 sendmail will break because it considers this a "sender address", 74 which is not permitted to use the :include: syntax. The easiest 75 workaround is to change this to: 76 77 owner-listname: :include:/some/file, 78 79 (note the trailing comma); a somewhat cleaner solution is to use: 80 81 owner-listname: listname-request 82 listname-request: :include:/some/file 83 84* MX records that point at non-existent hosts work strangly. 85 86 Consider the DNS records: 87 88 hostH MX 1 hostA 89 MX 2 hostB 90 hostA A 128.32.8.9 91 92 (note that there is no A record for hostB). If hostA is down, 93 an attempt to send to hostH gives "host unknown" -- that is, it 94 reflects out the status on the last host it tries, which in this 95 case is hostB, which is unknown. It probably ought to eliminate 96 hostB early in processing. 97 98* NAME environment variables with commas break. 99 100 If you define your NAME environment variable to have a comma 101 (e.g., ``Lastname, Firstname''), and you are using the $q definition 102 that uses ``name <address>'' format, sendmail treats the first and 103 last names as two addresses, thus producing a bogus From line. You 104 can work around this by changing the $q definition to use 105 ``address (name)''. 106 107(Version 8.10, last updated 12/11/93) 108