Hi Andreas On Thu, Aug 20, 2020 at 01:28:38PM +0200, Andreas Thienemann wrote: > My plan was to setup a proxy on a backup machine somewhere else and just > proxy 25/tcp to my primary MX. My initial plan was to use > smtpd_upstream_proxy_protocol = haproxy and thus inform the smtpd of the > real source IP of the connection to make limits etc. work again.
Use a different port? SMTP with proxy protocol is only spoken between controlled systems, so selecing some other port for it is no problem. Just add to master.cf: | 2525 inet n y n - - smtpd | -o smtpd_upstream_proxy_protocol=haproxy And select the appropriate port on the forwarder. Regards, Bastian -- Those who hate and fight must stop themselves -- otherwise it is not stopped. -- Spock, "Day of the Dove", stardate unknown