> What I'd like is a "mail reverse proxy" that does all the work to manage DNS, SPF, DKIM, DMARC, etc and handles sending and receiving emails, but doesn't do any storage or user management.
spf, dkim and dmarc are all dns related. Running nameserver and mail servers on the same system doesn't sound like a good idea, nor does having a mailserver with write access to dns-records. using a central administration for both however sounds beneficial. but then why stop there and not add all kinds of other useful features and voila, you have a full blown control panel far away from being a simple solution for mail.
I think dns for mail needs to be complicated, otherwise people lightly just set their spf records incorrectly which gets their mailservers blacklisted. or they just will never know why their mails get blocked. if they even find out about that.
spf, dkim and dmarc are all dns related. Running nameserver and mail servers on the same system doesn't sound like a good idea, nor does having a mailserver with write access to dns-records. using a central administration for both however sounds beneficial. but then why stop there and not add all kinds of other useful features and voila, you have a full blown control panel far away from being a simple solution for mail.
I think dns for mail needs to be complicated, otherwise people lightly just set their spf records incorrectly which gets their mailservers blacklisted. or they just will never know why their mails get blocked. if they even find out about that.