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sendmail has a BSD-compatible license and other MTAs don't. postfix's license has some weird clauses due to IBM. Exim is GPL. There is ongoing work in OpenBSD
by jolan 16y ago
sendmail has a BSD-compatible license and other MTAs don't. postfix's license has some weird clauses due to IBM. Exim is GPL.
There is ongoing work in OpenBSD on "opensmtpd":
http://www.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/ http://www.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/