Hi, > Wietse: > > Postfix instance 1 > > > > main.cf > > always_bcc = f...@example.com > > > > transport_maps > > f...@example.com -> Postfix instance 2 > > all other mail -> content filter -> Postfix instance 2 > > > > Perhaps a picture is worth 1e3 words. > > Alex: > > Does this mean modifying my existing default_transport to send mail to > > be filtered through a transport instead? > > > > # postconf -c /etc/postfix-117 default_transport > > default_transport = smtp:[127.0.0.1]:10024 > > That will work, assuming that Postfix instance 1 does not try to > make its own final deliveries (i.e. mydestination is smpty, ditto > for virtual_mailbox_domains). > > > And this is a separate solution from Victor's, correct? > > It is more or less Viktor's suggestion. > > Some details will be missing: relay_domains needs to be set u so > that Postfix instance 1 won't reject mail with "relay access denied".
Thanks for sticking with me here. That's a pretty big change for me. Victor helped me create the multi-instance setup initially, but I don't understand enough to set up the transports in this way. mydestination and virtual_mailbox_domains are empty. # postmulti -l - - y /etc/postfix postfix-out mta y /etc/postfix-out postfix-109 mta y /etc/postfix-109 postfix-110 mta y /etc/postfix-110 # postconf -nc /etc/postfix-109 |grep transport default_transport = smtp:[127.0.0.1]:10024 local_transport = error:5.1.1 Mailbox unavailable relay_transport = $default_transport transport_maps = virtual_transport = $default_transport