Why is Thunderbird plagued by duplicate messages? Is this a Thunderbird crock or an IMAP server crock?
The Mozilla Thunderbird email client is generally quite nice, but recently I have been plagued with many, many duplicate messages. After some Googling I discovered that there is an Add-on which will remove duplicates. It does have me seriously considering a new client but first I'd like to see if the real cause of the problem is understood and whether is lies with Thunderbird or with the server (Dovecot/Fedora 10 in this case).