Hi,
until now I worked around the SPF / mail forwarding / envelope-from
problem with using expand_owner_alias and having two local aliases for
every virtual user who wants his mail delivered to another account:
virtual: [EMAIL PROTECTED] john
aliases: john: [EMAIL PROTECTED]
aliases: owner-john: postmaster
main.cf: expand_owner_alias = yes
A few days ago I've read on postfix-users that the same can be achieved
with using canonical_maps and canonical_classes. I tried this, set
the latter variable to envelope_sender and created a regexp canonical
map like this one:
!/^.*@(doe.com|bar.net)$/ [EMAIL PROTECTED]
The obvious problem with that setup is that postfix is not only going to
rewrite the envelope from before passing the mail to smtp -- it will
also do it when resubmitting the mail locally.
Afterwards I considered adding:
-o receive_override_options=no_address_mappings
to smtpd in master.cf but since I was no longer sure about what I was
doing so I gave it up.
Is it even possible to use canonical_maps in order to rewrite envelope
senders for smtp(8) only? Or are there even better ways to accomplish
the same?
Any help appreciated,
Petar
