I use yunohost since 2016 for my email, and managed to have a 10/10 score on mail-tester.com.
However some day recently my DKIM signature failed (for a few days/months, didn’t notice the exact date) . When looking into the trouble, the DNS config in the “Diagnosis tool” mentionned a different key than the one I’ve been using at my registrar’s.
Were there a key rotation ? Did I miss a notification from my server ? I recently migrated using “backup+restore” but I don’t think it changed anything in the configs. Anyway, I fixed it by updating the key in my DNS zone.
Thanks for any insight you guys might have