I've been using modest with my .mac (now MobileMe) account for ages using IMAPS and it has been working fine, but it has recently stopped working. I've tried deleting the account and restoring backups, but nothing seems to help.

I've tried claws, and that seems to work ok, but it did prompt me to accept an SSL cert, leading me to conclude that I might need to coerce modest into accepting a new one, somehow.

Just to make life more confusing, at some point, modest started working with the .mac account again and at the same time claws stopped working, but the situation has reversed again.

The Apple mail client on OS X and Thunderbird running on my eee give no problems. Does anyone have any ideas on how to fix or debug the problem?

fnord