allowing sender-control of forwarding to external mail addresses.

return value (some implementations do not return negative on overflow).

Unified SEND commands with MAIL command logic.

Reduced maximum SMTP recipients from 1000 to 100 (RFC minimum).
Improved tracking of number of recipients and enforcement of maximum.
Logs maximum recipients reached error in spam.log.

but may be different for different instances (e.g. vert, rob, cvs.synchro.net).

Handles fdate() returning unsigned -1 (if time_t is defined as a ulong).

Re-arranged message header unlocks in a couple places.

FreeBSD-tested seteuid(BOOL user) (set effective user-id) callback.
Deuce's mod (for the most part).

Corrected client counter while shutting down sendmail_thread.
Added code pointer validity checks in Win32/Debug build.

is in the future.

Added support for new SMB header field type: RFC822TO.