5 r Recipient report: acceptance.
5 h Recipient report: permanent rejection.
5 s Recipient report: temporary rejection.
5 K Message report: success. host has taken responsibility for delivering the message to each acceptable recipient.
5 Z Message report: temporary failure.
5 D Message report: permanent failure.
After this letter comes a human-readable description of what happened. The recipient reports will always be printed in the same order as qmail-remote 's recip arguments. Note that in failure cases there may be fewer recipient reports than recip arguments. qmail-remote always exits zero.
5 helohost Current host name, for use solely in saying hello to the remote SMTP server. Default: me , if that is supplied; otherwise qmail-remote refuses to run.
5 smtproutes Artificial SMTP routes. Each route has the form domain:relay , without any extra spaces. If domain matches host , qmail-remote will connect to relay , as if host had relay as its only MX. (It will also avoid doing any CNAME lookups on recip .) host may include a colon and a port number to use instead of the normal SMTP port, 25: .EX inside.af.mil:firewall.af.mil:26 relay may be empty; this tells qmail-remote to look up MX records as usual. smtproutes may include wildcards: .EX .af.mil: :heaven.af.mil Here any address ending with .af.mil (but not af.mil itself) is routed by its MX records; any other address is artificially routed to heaven.af.mil . The qmail system does not protect you if you create an artificial mail loop between machines. However, you are always safe using smtproutes if you do not accept mail from the network.
5 timeoutconnect Number of seconds qmail-remote will wait for the remote SMTP server to accept a connection. Default: 60. The kernel normally imposes a 75-second upper limit.
5 timeoutremote Number of seconds qmail-remote will wait for each response from the remote SMTP server. Default: 1200.