i have postscreen and smtpd running on the same box as submission, and
it seems i am missing something when trying to leverage proxy protocol.
in my main.cf i have the lines:
smtpd_upstream_proxy_protocol = haproxy
...
postscreen_upstream_proxy_protocol = haproxy
this seems to work, but after a while haproxy detects the services as
down, and i get the below message from submission in logs:
postscreen_upstream_proxy_protocol = haproxy
i tried to add:
-o smtpd_upstream_proxy_protocol=
and
-o smtpd_upstream_proxy_protocol=none
to my master.cf, so submission would not try to use the proxy protocol
header, but i got errors or failures in both cases.
how do i configure postscreen and smtpd to use the proxy protocol, but
leave submission out, since it does not seem to recognize proxy
protocol. if submission does use the proxy protocol, what do i set for it?
