Error: Postfix - do not list domain example.com in BOTH mydestination and virtual_mailbox_domains

You see the following error in your mail log:

Feb 24 21:42:39 mail postfix/trivial-rewrite[1896]: warning: do not list domain example.com in BOTH mydestination and virtual_mailbox_domains

 

Solution

You have example.com in the resource (for example a MySQL database) referenced in the virtual_mailbox_domains directive in /etc/postfix/main.cf AND in the mydestination line (also in /etc/postfix/main.cf)! This doesn't work. You can list example.com either in virtual_mailbox_domains or in mydestination, but not in both.

Please correct this and restart Postfix:

/etc/init.d/postfix restart
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Comments

By: Christopher Thomas
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you mention that to solve the problem, you need to make both different, but never went far enough, nobody knows how to fix the problem, just that there is a problem. the error message already explained the problem, therefore in order to be a "howto" we need to know "howto" fix it.

By:
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That would depend on how the server is set up.  There is no one-size-fits all solution.  It's different for every configuration.

By: Anonymous
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In my case, at least, removing mydomain.com from mydestination cleared things up. On my server, mydestination is just localhost, localhost.localdomain

By: Anonymous
Reply  

GREAT SOLUTION, works for me.

By: SpartakusMd
Reply  

This worked for me also.

By: masud Hussain
Reply  

The solution is as simple as you mentioned.  it is working.......   :)

By: Scott Brower
Reply  

I see that this is old but there is a step that may help someone moving forward:

If you edit /etc/postfix/virtual don't forget to rehash it by running 

# postmap /etc/postfix/virtual 

Otherwise the virtual.db will be older and postfix won't see it.

 

By: Mauricio
Reply  

Great! I could fix this issue.

Thank you

By: BSF
Reply  

perfect, I could not find the solution. It only remains to make ispconfig accept 10MB email, modify the /etc/postfix/main.cf ... message_size_limit and virtual_message_size but in webmail it is still 2MB  

By: Adam
Reply  

well, it would be much better if you gave some examples of what you can do, and explain why you shouldn't use it in both, now you're only explaining what we already knew; Don't do it