• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

503 This mail server requires authentication. Please check your mail client settings

J

jshels

Guest
I'm having an issue where all of my domains are returning the aforementioned error message. I've included a link below to a post a few years back about this same issue however I believe that I have all of my settings correct and all necessary domains are listed in the domain.tab file as:

DomainName1 1 0 DomainName1 0 0 0 0

Here's the older posting - http://forum.parallels.com/showthread.php?t=49178

I've also included a screenshot of my Plesk settings.

My host (GoDaddy) has no experience with this issue.

Thanks in advance for your help.
 

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