Update Security
Additional DNS Records
A couple of authentication records are used to ensure that your server accrues good reputation in the Internet, you will need to add SPF, DKIM and DMARC information added as TXT records in your DNS zone.
Once you log in mailcow, you can add your relevant domain for which you want to manage emails, e.g. yourdomain.tld, as seen in the capture:
Once done, you can clic in the blue "DNS" button next to the domain and a new window will pop up with the analysis of the current DNS records versus the optimal configuration, use this information to create the three TXT entries needed:
