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Can't receive mails from other domains: Error 550 #5.1.0
https://forum.linode.com/viewtopic.php?f=11&t=10135
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Author:  mayank [ Thu Jun 06, 2013 2:49 am ]
Post subject:  Can't receive mails from other domains: Error 550 #5.1.0

Hi,
I have configured email using MySQL, Postfix and Dovecot based on https://library.linode.com/email/postfi ... 0.19-mysql on Ubuntu 12.04 LTS
Further I've added Squirrel Mail for Email Client.
I can send mail to Email address on any domain and that works perfectly fine.

However, I can receive only internal mails. If I try to send mail from email id on some other domain like Gmail, I get following error:

"Google tried to deliver your message, but it was rejected by the server for the recipient domain by smtp.secureserver.net.

The error that the other server returned was:
550 #5.1.0 Address rejected."

It would be great if someone with more knowledge and experience could guide me here.
Thanks in advance.

Author:  spacepenguin [ Thu Jun 06, 2013 4:02 am ]
Post subject:  Re: Can't receive mails from other domains: Error 550 #5.1.0

"it was rejected by the server for the recipient domain by smtp.secureserver.net." - This means that your domain's MX record still points to godaddy mail servers. Change your domains MX record to point to the hostname of your linode, wait a few hrs and you should be able to get emails at your linode.

Author:  mayank [ Sat Jun 08, 2013 3:12 am ]
Post subject:  Re: Can't receive mails from other domains: Error 550 #5.1.0

Thanks a lot! It took me some time to figure out the required changes in MX records in godaddy DNS configuration.
Earlier I set it to mail.mydomain.com
Just changed it to mail.mydomain.com. (a . in the end) and its working perfectly fine now.

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