Question DKIM entry for hostname

[dicker]

Server operating system version

Ubuntu 22.04.5 LTS

Plesk version and microupdate number

Plesk Obsidian 18.0.66 Update 2

Hello,
I can see the DKIM entries for the individual customer domains.

Where can I see the DKIM entry for the hostname?
The hostname is used when sending mail, so I have to have a DKIM entry there too, otherwise emails get stuck in the mail queue.
My hostname is a subdomain.

 

[scsa20]

The DKIM would be signed by the domain's DNS, not the main hostname. If emails is getting stuck in the mail queue, please review the mail logs to see what the actual issue is cause I can bet it isn't because of the DKIM but for something else.

 

[dicker]

Emails are declared as being deferred in the mail queue.
I am constantly shown a link where dkim is requested.

4.0.0 deferred (host mx00.emig.gmx.net[212.227.15.9] said: 451-Requested action aborted 451-Reject due to policy restrictions. 451 For explanation visit 451 Requested action aborted Reject due to policy restrictions. (in reply to end of DATA command))

<customer email: host mx00.emig.gmx.net[212.227.15.9] said: 451-Requested action aborted 451-Reject due to policy restrictions. 451 For explanation visit 451 Requested action aborted Reject due to policy restrictions. (in reply to end of DATA command)
recipient=customer email
offset=1230
dsn_orig_rcpt=rfc822;customer email
status=4.0.0
action=delayed
diag_type=smtp
diag_text=451-Requested action aborted 451-Reject due to policy restrictions. 451 For explanation visit 451 Requested action aborted Reject due to policy restrictions.
mta_type=dns
mta_mname=mx00.emig.gmx.net
reason=host mx00.emig.gmx.net[212.227.15.9] said: 451-Requested action aborted 451-Reject due to policy restrictions. 451 For explanation visit 451 Requested action aborted Reject due to policy restrictions. (in reply to end of DATA command)

<s2.joserv-server.de> Password reminder from Plesk
Date: Jan 20 14:40:58
Size: 948.00 B
[email protected]

 

[Kaspar]

Plesk currently doesn't support DKIM singing for the Plesk email notifications. There is an existing feature request on the Plesk UserVoice page for having notifications DKIM signed by default, which you can vote for: Implement support of SPF, DMARC and DKIM anti-spam methods for Plesk email notifications

This post outlines a possible workaround you can use to send Plesk email notifications with DKIM anyway:

https://talk.plesk.com/threads/smtp-for-outgoing-system-messages.374806/#post-949557