On Mon, Dec 30, 2019 at 10:52:28PM +1300, Peter wrote:
> > The reported symptoms are not consistent with content_filter being set
> > for the message.
>
> Yes, but does it preempt the resolution of whether a recipient exists at
> all? I thought that was done in smtpd, not qmgr. I believe there might
> be an implicit check_recipient_access on the end of
> smtpd_recipient_restrictions that does that, but I'm not sure.
The existence checks in smtpd(8) are not affected by
receive_override_options. The virtual alias tables are consulted as
appropriate. In any case, the message was accepted.
In more sophisticated configurations, I've used different definitions of
virtual_alias_maps in smtpd(8) and cleanup(8), with the one used by
smtpd(8) used only for existence checks, avoiding expansion of LDAP
groups, ... But since I wanted spam filtering (in particular a spam
quarantine) per-user, I did not use no_address_mappings.
> The idea being that a message needs to be rejected before it hits the
> queue?
This is why virtual_alias_maps is still used by smtpd(8) as part of
recipient validation.
> That said the logs do show the message going straight into qmgr, so I'm
> really just baffled here.
The reported symptoms are not consistent with the use of a
content_filter.
--
Viktor.
