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Old 16th June 2011, 22:40
erosbk erosbk is offline
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Default Postfix 550 - User unknown in virtual mailbox table / google apps

People, right now I have a site (oscommerce) that uses a form to send a mail from the page...

As I understand, the error that I am getting is that " doesn't exist". That is true, that mailbox doesn't exist because mx records for this domains are pointing to google apps.

Jun 16 16:02:29 mx1 postfix/smtpd[5029]: NOQUEUE: reject: RCPT from[]: 550 5.1.1 <>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<> proto=ESMTP helo=<>

So, I have a multiserver enviroment. site1 is web server, it only wait for emails from localhost, and relay these mails to mail server. Mail server rejects them with error 550...

How can I solve this? I need that emails go first to dns, and then define where to be relayed (to my mailserver or to another server, eg: google).

Do I have to change something in of my mailserver? maybe "mydestination value"?

My mailserver is named:

mydestination =, localhost, localhost.localdomain
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