FYI: FreeBSD 4 and alternate MTAs

[Chris Johnson]

FreeBSD 4 is starting to play nice with alternate MTAs. Maybe other systems
have had this feature for hundreds of years, but FreeBSD has a new thing that
lets you define your MTA and related programs in /etc/mail/mailer.conf; it no
longer assumes that everyone uses sendmail. /usr/sbin/sendmail, /usr/bin/mailq,
et al are all symlinks to /usr/bin/mailwrapper, which runs the programs you
define in /etc/mail/mailer.conf. It's very nice, and does away with the ugly
symlinks.

Chris