On Wed, Oct 7, 2020 at 2:34 PM Tom Sommer <m...@tomsommer.dk> wrote: > > So SASL user "t...@example.com" would be able to send only from > "@example.com".
smtpd_sender_login_maps = pcre:/etc/postfix/login_maps.pcre
content of /etc/postfix/login_maps.pcre:
/^(.*)@your(own)?domain\.org$/ ${1}
This would force sasl-authed user "me" to only send from
m...@yourdomain.org or m...@yourowndomain.org.
You can change the regex to allow from @domain instead.
