Your message is not signed with DKIM

[imlemeciz]

In the cwp panel, it all looks verified like this. But after sending an e-mail, I check it on the tester sites and it gives the following error

Your message is not signed with DKIM

Where could I be doing wrong?

[cyberspace]

How did you send your test email ? Was it sent using Roundcube, some php script in your account or local mail application like Thunderbird ?

[imlemeciz]

Roundcube send.

Problem postfix main.cf 3line code add

[Starburst]

Yea, those 3 lines will get you.
Why we have a KB for it.

https://kb.starburstservices.com/control-web-panel-cwp/control-web-panel-cwp-admin-tutorials/dkim-not-working-on-almalinux-9-with-cwp/