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I want to achieve the following with postfix:

Almost all outgoing emails shall be sent via a relayhost, configured in main.cf with

relayhost = my.mailserver

There's one specific email address (bugs@mydomain.com) for which I want the email to be delivered locally. I set up a local account on the machine to match the email address and added "mydomain.com" to the mydestination property in main.cf. Then of course postfix tries to deliver every email to @mydomain.com locally and bounces them because the respective user doesn't exist.

Question Hybrid gmail MX + postfix for local accounts seems to be somewhat related (though more complicated).

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I finally figured out the correct syntax in the transport configuration file:

Add the following to /etc/posfix/transport:

bugs@mydomain.com :
*    relay:[my.mailserver]

and run

postmap transport
postfix reload
  • hmm this does not work for me - still relays 'bugs@mydomain.com'. – rynop Jan 23 '13 at 22:13
1

The correct way to do this is add the following to /etc/posfix/transport

bugs@mydomain.com local:
*     relay:[my.mailserver]

Then add the following to /etc/postfix/main.cf:

transport_maps = hash:/etc/postfix/transport

Then run:

sudo postmap hash:/etc/postfix/transport
sudo /etc/init.d/postfix restart

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