above all, thanks for being able to join this board!
Well, I have an account on a ubuntu webserver, running exim4 as sendmail
replacement. And,
I want to prevent exim from sending out the "X-Relay-User" header line.
Reason behind is, that I am running a real email account together with
several email redirects to this single email account. So, whenever such a
redirect / forwarding address is being spammed, I can simply close it and
open a slightly different one and use this instead.
This only works securely as long as the name of the "real" email account
is not written into the "X-Relay-User" line when sending from this
account.
The funny thing is:
When accessing /usr/sbin/exim4 locally, then Squirrel email client is
able to write the header without "X-Relay-User" info. But,
when accessing exim via smtp on a different box then this directive is
ignored and the real email address is part of the header.
Does exim only accept customized headers when called from /usr/sbin/exim4?
Is it part of the default settings to write this info into the header?
Can exim be told to not write X-Relay-User even when called via smtp?
