first cut at full 8-bit data capability

tweaks & bug fixes to MIME algorithm

MIME 8 to 7 bit support

break out special local mail processing (e.g., mapping to the
"prog" mailer) onto separate mailer flags

don't time out non-SMTP reads from stdin

when creating the df file, be sure you truncate any existing file

avoid using %m in syslog calls because it conflicts with HP-UX

defer error messages until after the collect is done to get around
a disagreement with MVS about how the SMTP protocol works

improve "out of temp space" error message

speed up reading of messages by reducing system call load

be a bit less tricky to avoid confusing old C compilers

fix problem that was causing the ctladdr of whoever ran the daemon
(usually root) to own the delivery process

fix problem that caused last header entered with no body to be discarded

check fflush, fclose, and fsync return values in a few critical places

8.6.2: improved error return messages; better error handling on
hung connections or the name server is down; add "vendor code" on V line;
fix some X-Authentication-Warning: problems; portability fixes

fix duplicate error messages if connection lost during DATA when
one address failed (wierd situation)

don't call newstr() macro with arguments with subroutine calls, since
it double-evaluates

fix statistics gathering

4.4BSD snapshot (revision 8.1); add 1993 to copyright

print better diagnostic information on sfgets timeouts

fsync queue files

Solaris portability changes

prototype functions

create dead.letter with FileMode instead of 0666

don't change alpha case on header field names