log sendmail version during SMTP startup

fix SMTP display bug; allow SMTP greeting failure to go to next MX
host; tweak MIME headers; fix problem causing buffer overruns in map
lookups; fix split header/envelope rewriting rule parsing; disa

fix SMTP display bug; allow SMTP greeting failure to go to next MX
host; tweak MIME headers; fix problem causing buffer overruns in map
lookups; fix split header/envelope rewriting rule parsing; disable VERB
if PRIV_NOEXPN set

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fix To: lists in error messages

don't write arbitrarily off the end of a buffer (ugh!)

a bunch of nits in the MIME code

add debugging

fix parsing of split header/envelope rewriting rules

allow 421 instead of initial greeting message to go to next MX

don't allow VERB if PRIV_NOEXPN set

don't botch message display (if it begins with digits)

major rewrite of alias module; cache name server canonification
results; O8 => O7; add Oj (MIME format messages); fully qualify EXPN output;
many minor tweaks

avoid some implicit dependencies on NETINET

have *file* mailer output all appropriate flags

debugging in putheader

strip spaces off of beginning of message-id (in case it was folded)
before logging

add ListenQueueSize keyword to O (Daemon Options) option

allow comma separated A option(s)

cleanup for NIS and general usability

fix bug causing mail to be returned in -bv mode

fixes for problems causing mail to be both sent and rejected

fix VRFY and EXPN output to have fully qualified names

create dead.letter with FileMode instead of 0666

change prototype for dfopen

fix some bogus messages being printed in mailq command

avoid gratuitous warning messages