Jeremie Le Hen:
> Hi list !
>
> As far as I understand, there is an "implicit" check in the
> smtpd_recipient_restrictions parameter when virtual_alias_maps
> or relay_recipient_maps is specified. But when does it append?
By default, the check happens at the end. However, you can specify
the documented reject_unlisted_recipient and reject_unlisted_sender
earlier if you like.
> From my own testing, I think it is check at the very end but I would
> like to know if there's a rule for this, I couldn't find it in the
> documentation (by the way I think it should be worth writing it
> explicitely).
It is documented as part of smtpd_reject_unlisted_recipient. When
this is set to "yes", Postfix will reject mail even when you did
not specify reject_unlisted_recipient.
This means that reject_unlisted_recipient takes precedence over
smtpd_reject_unlisted_recipient. Therefore,
smtpd_reject_unlisted_recipient must take effect at the end. If it
took effect at the beginning, then reject_unlisted_recipient could
not take precedence.
Wietse
