Hi,
given a postfix config like this:
# postconf -n
compatibility_level = 2
mydestination = example.com
myhostname = f34-test.example.com
If I try to send mail to notlo...@example.com with "notlocal" neither
being a system user nor being contained in the alias_maps, it is
rejected with "550 5.1.1 <notlo...@example.com>: Recipient address
rejected: User unknown in local recipient table" - as is to be expected.
But if I add something like
virtual_alias_maps = inline:{notlo...@example.com=notlo...@example.com}
to the config, the address will be accepted (of course, in the end, a
bounce will be generated if no suitable setting - e.g. an entry in the
transport_maps - exists which somehow makes delivery possible).
I was bit surprised that creating a virtual mapping of the address onto
itself prevents it from being rejected[1]. And although I guess that it
probably is obvious why postfix behaves this way, I have failed to find
an explanation for this behavior in the docs.
Could someone please point me to the right place?
[1] At first I thought, the default of
virtual_alias_domains = $virtual_alias_maps
might be the reason. But on the one hand, the plain domain name isn't
contained in the map. And on the other hand, explicitly setting
virtual_alias_domains to an empty value, doesn't prevent the address
from being accepted.
--
Regards
mks
