Gerben Wierda: > > On 15 Jan 2023, at 15:47, Wietse Venema <wie...@porcupine.org> wrote: > > > > "The name of the proxy protocol used by a before-postscreen proxy agent." > > That still doesn't tell you what the effect is of entering a value > for that setting while the traffic is not coming from a proxy. > Normally, when you enter config data for something you do not use > it is harmless. Basically, here, by setting the name here, you are > also turning it on. That is for me at least intuitively a side-effect.
I beg to differ. A proxy changes the source IP address, whereas a router does not. How would Postfix know that there is a proxy in front, as opposed to a router? A proxy has to pass the remote SMTP client address/port details, and that requires a protocol. > Basically, I am looking for a setup where I can have postfix work > when part of the traffic (from the internet) is coming via a proxy > whereas local (LAN) traffic isn't. Probably not an option, I guess, > but it would make life a lot easier in my current situation. In that case, use two SMTP services, one that is proxied and one that is not. Wietse