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Header (not envelope) rewriting in zmailer?
I need to block mail from outside this site to certain aliases. The
aliases mostly point to other sites.
I can see two ways to do it:
- hide the addresses. Rewrite the outgoing To: header to something:;
and assume that nobody outside will guess what the magic alias is.
- do something crossbar-like, but before alias expansion. crossbar()
at present doesn't see the alias, so mail from outside to these
aliases looks like ordinary transit mail inside crossbar().
However, I can't see where I can put in these hacks. Is it at all
possible?
--Arnt