Plesk 12 postfix smtp suddenly started issuing relay access denied on all recipients

[John]

Hello

After setting up a new server on Plesk12, I successfully ran some test mail outs using phpmailer using the SMTP server on this machine

However, there was an issue in creating new local mail accounts in plesk with an error message each time.

Investigating this issue led me to a solution that I should run mail_restore from the Plesk scripts

This cured the problem of setting up new local accounts but outgoing SMTP mail is always failing with 'relay access denied'. I have been unable to find a resolution for this issue.

Any help would be greatly appreciated

Best regards
John

 

[IgorG]

Have you tried to fix it with

# /usr/local/psa/admin/sbin/mchk --without-spam

?

 

[Darren Benham]

I am having the same problem. I have gone through every support article that came up when I searched the error message. That means I've done the mchk program. I've checked that the service is running. I've changed the domain -u <domain.ext> --mail_service false/true, etc.

What next? Why did postfix decide to stop allowing email sent from roundcube to be delivered? Well, not just roundcube but that's from the server itself, you'd think that it would have the least amount of problems but it doesn't work from outlook, thunderbird, opera, or any other client I've tried.

Darren