> On Mar 20, 2018, at 9:41 AM, phep <phep-li...@wakzo.net> wrote: > > Now I have a sister organisation with domain example2.com that operates a web > app than needs to send mail through our Postfix server and I want to relay > mails sent from this web app provided the messages sender meets a specific > email address (say web...@example2.com). > > How can I do that in main.cf ? Simply adding the web app server IP to > mynetworks would not do the trick since I'd rather not relay any email > traffic from this server, only this webapp messages (notwithstanding fake > headers). > > I read through smtpd_reject_unlisted_recipient and smtpd_relay_restrictions > documentation but could not figure out how to do it.
http://www.postfix.org/RESTRICTION_CLASS_README.html -- Viktor.
