post...@ptld.com:
> If i send mail to submission:587 addressed to another user on the same
> server, postfix instead of sending the mail to the mx records for that
> domain, and connecting to postfix on smtp:25 it bypasses all of that and
> delivers directly into that users inbox. This avoids all of my
> filtering, smtpd_helo_restrictions, smtpd_recipient_restrictions, ban
> list, etc.
>
> I am hoping for an answer that works in both of these situations. I have
> two setups, one where everything is self contained on one server with
> dovecot and postfix.
>
> On my second setup i have postfix smtp:25 on one server, and dovecot
> imap:143 with postfix submission:587 together on another server. I want
> when someone sends an email from their client to the submission server,
> the submission server would connect to the smtp:25 server to deliver the
> mail. But the submission:587 server directly delivered to the user's
> folder and bypassed the smtp:25 server.
>
> How can i avoid this behavior and make postfix deliver the mail to "the
> front door" smtp:25 even if its a user on the same system?
Remove the recipient domain from main.cf:mydestination and
main.cf:virtual_mailbox_domains.
Add the recipient domain to main.cf:relay_domains.
Wietse
