Martijn de Munnik wrote:
Hi Noel, List,
Thanks for your reply! I changed things according to your settings but I
guess I overlooked a thing? Still they backup mailserver relays
everything for *...@validdomain.org. Invalid domains are not relayed.
Please don't top-post.
Valid recipients for relay_domains should be listed in
relay_recipient_maps, check that file.
http://www.postfix.org/postconf.5.html#relay_recipient_maps
http://www.postfix.org/ADDRESS_CLASS_README.html
Recipient validation can also be thwarted by a catch-all in
virtual_alias_maps or *canonical_maps, but you don't seem to
be using either of those (unless you've defined them in
master.cf - don't do that).
Hmm, the backward-compatible default value of
virtual_alias_maps is the deprecated parameter $virtual_maps,
so that won't show in postconf output. If you have
virtual_maps defined in your main.cf, make sure there aren't
any catch-all mappings.
-- Noel Jones