Knowledge base

smtp-proxy verified

Ranges that speak the PROXY protocol

in the configuration this is a linesmtp-proxy:

Address ranges whose connections begin with a PROXY header carrying the real client address.

Values

Values
addresses and ranges
Default
· taken from the build
applying
restart required
where it can be set
in the config file · with a startup flag · as an environment variable

In detail

For intakes behind a load balancer: without it every submission appears to come from the balancer, which breaks both smtp-range and any per-client accounting. Added for HAProxy-style front ends in 5.14.0. Present in the stock config but not printed by –help, one of the few cases in that direction.