hi no I don’t use pfSense / OPNsense, but I’m in nat.
this thing, however, has been happening for a few days and has not always done so and nothing has been changed on the router (mikrotik).
But along with this, a problem with the acme container also happened, which was then solved, here you can see the issue mailcow/mailcow-dockerized#3588
thanks for the quick response