iOS 18 clients fail to communicate with IMAP server.

[scanner]

In iOS18 (but not mac os sequoia) the Mail.app broke for a number of IMAP clients. On the net suggestions that 18.1 fix the problems or specifying that the prefix is "/" fix the problems do not work with asimap.

The iOS 18 Mail.app can clearly talk to the server.. we see it login, we see it request the LIST of folders, we see it begin to FETCH messages and then it disconnects. iOS18 claims that the server is not communicating but it clearly is. Something in how they interpret the IMAP protocol has broken, but only for a subset of the IMAP server implementations out there. Need to figure out what the iOS 18 Mail.app does not like.