amavis behind haproxy

Dusan Obradovic dusan at
Wed Sep 19 21:08:23 CEST 2018

> On Sep 19, 2018, at 14:15, Vitali Quiering <vitali at> wrote:
> Do I need amavisd-milter? If yes, why? What’s different besides before or after queue?

Using Milters potentially solves your problem. Your receiving front-end Postfix talks smtpd_milters protocol over HAProxy TCP mode to load-balanced back-end Amavisd-milter hosts. Amavisd-milter talks AM.PDP protocol to Amavisd and does not need to re-inject scanned messages to Postfix.

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