Failback mailboxes?

Hi!

Have been using Fedora as my dovecot server for some time and am struggling with systemd at every update. Fedora insists on setting ProtectSystem=full in both dovecot.service and postfix.service at every update of the packages.

This makes my mailstore which is in /usr/local/var/mail Read-only.

And this makes the incoming emails delivered through dovecot-lda disappear into /dev/null until I notice the problem and we lose incoming emails.

My question is: Is there any way to set up a failback mailstore for these occasions?

PS! I really hate systemd - Destroys the UNIX way of doing things with a heavy axe....

Best Dag