I am using the standard edition of Google Apps am having issues with sending mail from Outlook 2007. I have followed the Google Instructions to the point, but I receive:

550 - No Such User Here

As a note:

  • Authentication is set up correctly
  • TLS and the correct port is in use

I am thinking that it may have something to do with the settings pointing directly to google.

Instead of using pop.gmail.com and smtp.gmail.com, must I use pop.mydomain.com and smtp.mydomain.com?

Also, the pop settings work 100%. I receive my mail fine.

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Have you set the MX records of your domain to the google servers? – BloodPhilia Aug 14 '10 at 12:15
@Blood - Yeps, all set. There are no duplicate MX records either, only googles. – Kyle Aug 14 '10 at 13:29
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1 Answer

Have you set up the account correctly ?

The user name should be userid@domain.tld

The servers should be - imap.gmail.com / pop.gmail.com ( IMAP/POP3 server ) - smtp.gmail.com ( SMTP server )

Ensure you've enabled SMTP authentication - Under Outgoing Server tab, put a check against My outgoing server (SMTP) requires authentication is selected. The radio button Use same settings as my incoming mail server should also be selected.

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Yep. All of my settings are set as you've set out. – Kyle Aug 15 '10 at 16:46
@Kyle Thats... weird, just had a look at Google Apps' support firum, most of such issues reported are due to incorrect MX record setup. I'd recommend posting a query at Google Apps Support forum google.com/support/forum/p/Google+Apps/… – Sathya Aug 15 '10 at 18:16
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