Doubts about PF, what are the pros/cons about other MTAs?

[Koopmann, Jan-Peter]

> Exim seem to extend Sendmail or am I wrong here ?

Yes you are. :-) Exim is totally different from Sendmail. Different
setup, lots of more/extended functionality etc.

Personally I like it a lot better than Sendmail but that does not make
it "better". Postfix (and Sendmail I presume) are supposed to handle
large (and I mean LARGE) e-mail volumes better than Exim though.