I have two IMAP accounts set up, the Gmail account works perfectly, but my work account (Lotus Notes / Domino 7) shows two identical inboxes, and I need to jump between them a dozen times to get either one to be current. In the process it shows expunged, multiple listings of the same email, invalid or simply only a part of the inbox content. Also, the status stays as never updated, even when it is, and deleted mail stay on the server. The mail-file has been rebuilt and checked, and works fine in Thunderbird (one inbox only) as well as in Lotus Notes.

ANY ideas?? Anyone have a Domino account working on a N900?

@slender: Unsubscribing from a folder in Thunderbird does NOT change the subscription on other clients, only locally. You decide on each client which folders you want to subscribe to, except on the N900 truly modest client, there you get them all. I don't know of a way around that currently. At least that is how it works over here.