I'm using version 1.1 on Mandrake 8.2. After a while, the mail client loses the ability to retrieve e-mail from my remote IMAP server. After discussing with my IT guys, it seems the problem is zombie imapd processes on the mail server. If I ssh to the mail server, do a "ps -fu <my_username> | grep imapd", and kill all the imapd processes, everything becomes OK again. For a while. And then the same problem recurs. This problem does not occur if I use a different IMAP client. I should mention I'm checking my mail on my laptop at home. I also have a Mozilla mail client open on my desktop at work. That may be having some effect.
Reporter, we're not yet sending the QUIT command to the IMAP-server (bug 93210), but that shouldn't normally hurt, since the server will notice that the connection has been closed. But every server has a timeout value to detect similar problems (quite common on the Internet). Check if your server has a timeout, and try to lower it (2 minutes or so). If your imap-server stays around forever, that's a bug in the configuration (a denial-of-service attack is then really easy). The presence on the second client shouldn't hurt (each client gets his own copy of the imapd process), unless your administrator puts a limit to that. But that has nothing to do with Mozilla. *** This bug has been marked as a duplicate of 93210 ***