add QSELFREF bit

add YP_LAST_MODIFIED and YP_MASTER_NAME to DBM version of alias
database if YPCOMPAT is #defined (from Takahiro Kanbe).

move the meta-characters from C0 into C1 space

increase size of searchlist to allow for extra "" entry

change -bt so that -v always prints prompts

change logging of 4yz error codes

add "c" mailer flag to suppress all comment info in addresses

add M_NOCOMMENT flag (eliminate comments in addresses)

clean up log levels; allow IDA-style split header/envelope rewriting;
extend arpatounix with more zones (but is this even needed?)

split envelope and header mailer rewriting sets

Allow saving in ~/dead.letter; clean up VRFY output; fix bogus
error message in udbexpand; null terminate host buffers in buildaddr
(broken in 6.21).

improve some error messages; fix quoted :include:s; check for some
other buffer overflows; log SMTP protocol errors

increase size of prescan buffer

fix another problem in the MCI state machine

HPUX and OSF/1 support; fix SMTP reply codes & multiple SMTP error
problem; consider cache timeout non-permanent; be more graceful on OS
failures; log forward, alias, and userdb expansions on log lev

HPUX and OSF/1 support; fix SMTP reply codes & multiple SMTP error
problem; consider cache timeout non-permanent; be more graceful on OS
failures; log forward, alias, and userdb expansions on log level 10

show more ...

fix System V compatibility -- again

fix wildcard MX handling (option W no longer needed); fix
process title when using cached connection; many minor fixes

fix the System 5 compatilibility to be compatible with the rest
of the world.

System 5 compatibility, misc fixes

System 5 compatibility

fix mci_state after sending RSET command

some (iffy) changes to prevent suppressing the actual sender
during a queue run (interaction with C line in qf file)

log all instances of setting stat to EX_INTERNAL (Internal error)

misc changes

fix -e compat flag; a few compilation warnings; improve error messages