I have the error that when I try to enable DKIM verification that I get the error message that the DKIM settings cannot be deleted. I have read the post by Patel that this worked in 18.0.3 but is broken in 18.0.4 and will be fixed with 18.0.5.
I added the DKIM private key and selector for our domain and tested it with online DKIM tools. The DNS part is correct. Their error is that there is no DKIM signature header added to the email received send via the XG.
Is the signing part also broken in 18.0.4?
Thank you for contacting the Sophos Community!
I would recommend you to get a case open and get the patch applied for NC-60398, and the patch most likely will solve this issue.