From the changelog, 2017 (so relatively early in the Slackware 15.0 development marathon):
Code:
Fri Nov 17 00:56:25 UTC 2017
...
n/dovecot-2.2.33.2-i586-1.txz: Added.
This will be the new IMAP/POP3 server in the next Slackware release.
Thanks to Alan Hicks, Mario Preksavec, and /dev/rob0 for assistance.
...
n/postfix-3.2.4-i586-1.txz: Added.
This will be the default MTA in the next Slackware release. Thanks to
Alan Hicks, Mario Preksavec, and /dev/rob0 for assistance.
...
n/sendmail-8.15.2-i586-2.txz: Removed.
Moved to /extra.
...
extra/sendmail/sendmail-8.15.2-i586-2.txz: Added.
Moved here from the N series. This is still a solid choice for an MTA, and
probably the most flexible (although it can be difficult to configure - it
has been said that the M4 macro language resembles line noise).
Thanks to Eric Allman and everyone at Sendmail for all the years of work.
Source:
https://mirrors.slackware.com/slackw.../ChangeLog.txt