Thanks for looking into this and thank you Peter for reporting my issue to the list.
To confirm, the alias is in the last database ( hash:/etc/postfix/virtual_alias_maps ) but the forwarding only works if "receive_override_options = no_address_mappings" is NOT set (commented out). And for the forwarding to actually happen the content_filter must be disabled (unless there is a valid daemon listening and re-injecting, etc). If no_address_mappings is enabled, the message bounces with user unknown error. virtual_alias_maps = pgsql:/etc/postfix/pgsql_virtual_alias_maps.cf hash:/etc/postfix/virtual_alias_maps Re: content_filter -- yes, I did uncomment this setting when submitting the configuration to provide a fuller picture of my setup. However, as you noted, the log entries were generated without the content_filter set. Apologies for the confusion. On Mon, Dec 30, 2019 at 8:51 AM Viktor Dukhovni <postfix-us...@dukhovni.org> wrote: > > 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.
