• We value your experience with Plesk during 2025
    Plesk strives to perform even better in 2026. To help us improve further, please answer a few questions about your experience with Plesk Obsidian 2025.
    Please take this short survey:

    https://survey.webpros.com/

DKIM Plesk 12

The above thread didn't help.
I have CentOS 7 and Plesk 12.

When enabling "Use DomainKeys spam protection system to sign outgoing email messages" from domain's Mail settings, in domain's DNS appear two TXT records:
_domainkey.domainname.com. TXT o=-
default._domainkey.domainname.com. TXT p=xxxxxxxxxxxxxxxxxxxxxxxx;

but the e-mails aren't signed.
Also /etc/opendkim.conf, /etc/opendkim/KeyTable, /etc/opendkim/SigningTable and /etc/opendkim/TrustedHosts files are missing (if we consider that this is the correct way to install DKIM).
 
Last edited:
Hi quark,

even that the definition "DomainKeys" and "DKIM" have parts in common, these two signing procedures have different installation packages, different paths, different modifications and what is most important, ONLY "DomainKeys" is used by Plesk. If you wish to use "DKIM" as well, you may find some ( working ) solutions over the forum search.

If you wish additional informations and/or help, please provide the used MTA ( qmail or postfix ) and describe your previous steps to install OpenDKIM ( "DKIM" ) on your server, which need some more steps, than only to use "yum install opendkim" to work. As well, mail - logs are usefull to help you to investigate possible failures/issues.


The part
When enabling "Use DomainKeys spam protection system to sign outgoing email messages" from domain's Mail settings, in domain's DNS appear two TXT records:
_domainkey.domainname.com. TXT o=-
default._domainkey.domainname.com. TXT p=xxxxxxxxxxxxxxxxxxxxxxxx;
... is for "DomainKeys" and not for "DKIM", please keep that in mind, when checking your configuration(s)/modification(s) with for example "http://www.mail-tester.com/" or "http://www.port25.com/support/authentication-center/email-verification/" after your installation(s)/modification(s).
 
Back
Top