I'd like to see more people do it... but full caveat that the present world, especially dealing with anything Google, has made it not into an easy endeavor.
That said, "postfix + dovecot + spamassassin" and testing config against http://www.mail-tester.com/ would be my recommended setup. Good luck!
RiveraValdez, testbeta, Sajith Sasidharan, Charles Stanhope and 4 others likes this.
Claes Wallin (韋嘉誠), Claes Wallin (韋嘉誠) shared this.
Thanks for the encouragement, cwebbs. I will pass along your notes and tell him he's doing something for the good of the webs.
Christopher Allan Webber likes this.