Am 2019-09-20 12:06, schrieb Randal, Phil: > When I migrated our mx boxes from CentOS 5 to 7 I made the leap to > postfix. > > I built a test server with postfix etc on it and threw everything I > could think of at it before going live. > > The key is, like in learning a new language, to start thinking in > postfix terms instead of thinking in sendmail terms. Exactly, I was about to answer the same. Postfix has a lot of features build-in Sendmail hasn't. It is feature rich and actively developed. Many things you would need a milter or complex cf style coding for with Sendmail you can configure in Postfix in a simple way. > It takes a while to 'get it' but I'm glad we made the link. > > We search, read as many people's howtos as you can (caveat - they are > rarely 100% accurate), and test, test, test before going into > production. Please, forget about so call howtos or tutorials on the net. They are either dated, giving wrong ideas (no, you don't need a MySQL server to run Postfix), failing to explain why the author has done things the way he writes them up, or they are simply wrong / violating best practice. Postfix has a very good documentation (compared to the one shipping with Sendmail). http://www.postfix.org/documentation.html http://www.postfix.org/postconf.5.html > Cheers, > > Phil Alexander