onionmail POP3 server continues accepting creds after accounts are deleted

The “disobey”¹ onionmail server has been accepting my POP3 logins without issue for months/years. There has been “no new messages” for as long as I can remember and I have also not sent mail for a long time. Then I tried sending myself a message and I get “500 Mailbox full”. Yet my inbox is empty.

It’s quite disturbing because I have no idea when the admin apparently decided out of the blue to delete my account. It might have an automated removal, perhaps due to such sparse/rare traffic. But regardless, it makes it hard to trust any #onionmail server because they all run the same code. This same scenario occurred on another onionmail server as well.

Does anyone here use onionmail?

¹ a5dkbvgakon2lxmauleiizkv6i3s36wp6w3i32a3buc4xmtdnbttmryd.onion