Getting "is not a valid mailbox" when email sent to primary address

Posted by Juan Tarquino on Server Fault See other posts from Server Fault or by Juan Tarquino
Published on 2010-09-02T21:21:07Z Indexed on 2011/01/01 7:55 UTC
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exchange-2003

Anyone outside my domain who sends me an email is getting a bounced email with the following error from Exchange:

550 550 5.1.1 [email protected] is not a valid mailbox (state 14).

I can't receive emails from external addresses until I send an email to one of my secondary addresses. Once I sent it to my secondary address, my primary address will start working for a while and fail again after a few hours.

We use Exchange 2003. Anyone has any suggestions on what to try?

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Getting "is not a valid mailbox" when email sent to primary address - Developer IT

Getting "is not a valid mailbox" when email sent to primary address

exchange-2003

Related posts about exchange-2003

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