Hello
I have read every post you provided. Thanks so much. Now I know that,
1. Qmail is too old to be supported
2. Sendmail is a Primitive and complex system, not suggested
3. Postfix and Exim are main stream today
4. Exim has more built-in features such as Dkim and customized transmap,
but may be hard to setup correctly
5. There are other all in a box solution like
xmox.nl who has mta-sts and dane integrated
I currently run the mailserver (simplemail.co.in) with postfix +dovecat
+milters like opendkim. Here is most of my setup,
https://fenghe.vivaldi.net/2024/06/13/steps-to-make-email-system-more-secure/
During the setup I got direct support from postfix developers including
Victor and Wietse. And I would like to test every other solution.
Regards
--
Jeff Pang
jeffp...@aol.com
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