SMTP Authentication - 550 : Relay not permitted

May 15, 2016 6.5k views
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innoent
By:
innoent

Hi,

I am running vestacp on ubuntu. Encountered i) phpmyadmin pma issues when importing db. ii) roundcube unable to save password. iii) emails sent to gmail ended up in spam folder. iv) DKIM check: permerror. All 4 issues above were solved with help from google for the fix.

The smtp mail check using mxtoolbox lastly showed 550: relay permitted for my vestacp installation. A check on another smtp mail from cpanel showed

550-Please turn on SMTP Authentication in your mail client, or login to the
550-IMAP/POP3 server before sending your message. pws3.mxtoolbox.com
550-[64.20.227.134]:63195 is not permitted to relay through this server without
550 authentication. [703 ms]

Image link

Does that mean I am accepting emails which have not be authenticated? If yes, how do I configure exim4 to show the new message/rule in code 550?

Thanks!

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1 Answer
PatrickDO August 11, 2016

Hi @innoent,

It seems as though your mail server doesn't have relaying allowed for the source address, or user. I see you've mentioned using VestaCP, and perhaps our tutorial on VestaCP would be able to assist in this regard:

https://www.digitalocean.com/community/tutorials/how-to-install-vestacp-and-set-up-a-website-on-ubuntu-14-04

Let us know if that helps, and if you need any further assistance?

How To Install VestaCP and Set Up a Website on Ubuntu 14.04
by Jonah Aragon
The Vesta Control Panel is a free, open source website control panel with website, email, database, and DNS functionalities built in. By the end of this tutorial we will have Vesta installed and running on Ubuntu 14.04 with a working website and email account.
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