Hi there.

Although it does not seem to be a Dovecot issue, I'm sending this here as people in this list may know better where exactly the problem is.

I am working on Dovecot 1.0 (.alpha5, right now), with the aim that when Dovecot becomes stable we can put that into production. Recently after being more clear with the behaviour (I'm most into namespaces and mbox/maildir mixing issues, as you can see from my past messages), I have adopted a few (two, right now, with the third one gone) "Guinea-Pigs" to use the experimental IMAP server - people who very much want an IMAP service here and thus may help me test bugs.

One of them reported, that he does not always see new mail. That user is using Mozilla Thunderbird (1.0.7). Looking a bit with him at the workings, I can see the issue. He has the IDLE extension enabled. However when sniffing the network, I see that sometimes when switching to another mailbox, the SELECT command is not always sent to the server. At the beginning, INBOX is (always) selected. Then another mailbox is selected, and usually a SELECT command is sent and the mailbox is seen. But going back to INBOX again, often no "SELECT INBOX" is seen on the wire. Then of course he sees no "EXISTS" or anything like that.

I wonder if anyone else has observed this, or in some other way, that Thunderbird does not always show new mail.

Sometimes it appears that a mailbox is selected in Thunderbird, and Thunderbird immediately (remembering from its cache) does a FETCH to show the message in the mailbox/folder, but not SELECT to update the folder itself.

Can caching in Thunderbird be completely disabled, so that every action will be done against the server?

Regards, -- Tom

-- Tom Alsberg - hacker (being the best description fitting this space) Web page: http://www.cs.huji.ac.il/~alsbergt/ DISCLAIMER: The above message does not even necessarily represent what my fingers have typed on the keyboard, save anything further.