DKIM record being default and Multiple DMARC records detected

lumideez

Dear Brilliant minds, I’m trying to send out emails using Brevo but I cant because its complaining about DKIM record being default and Multiple DMARC records detected on my mailcow server.

Is there a way I can resolve this two issues through my admin dashboard?

Many thanks

esackbauer

I don’t know Brevo, but you should have then either mailcow or Brevo sign the outgoing mails, and DNS records must reflect this properly. You could in mailcow admin UI remove the DKIM Key for the domain, that will disable DKIM on the mailcow side.

lumideez

esackbauer thanks but if I disable the DKIM can it affect my mailbox security?

esackbauer

DKIM is not about “mailbox security”, it is about telling the recipient that the mail is originating from your server and was not altered in transit.
https://en.wikipedia.org/wiki/DomainKeys_Identified_Mail

Regarding Brevo, I guess you were asked to change some of your DNS entries for them, so as they are providing DKIM and SPF and DMARC already, you should ask them how to proceed. I guess you need then to remove your DMARC record you created for mailcow during setup.
However please check with them.

lumideez

esackbauer oh thank you so much for this heads up