I've seen this before with Thunderbird. As I recall, Thunderbird requests a lengthy operation but times out (or fills a buffer?) before getting a result back. It then tries the operation again, until the mailbox is woefully full. To clean up, we typically calculate checksums on the files and find duplicates that way. :wes On 25 Aug 2008, at 19:50, Jorey Bump wrote: > I've discovered that a user's folder suddenly contains a couple of > thousand duplicate messages. Each pair of messages shares the same > inode > (ext3) but has a different filename (for example, 15715. and > 21534.). I > haven't determined the cause yet, but I believe it may be due to an > aborted attempt to reorganize this large collection of emails (almost > 20,000 messages). The account is shared among a handful of users who > access it concurrently, using the same login and password, which may > have contributed to the issue. > > Is the shared inode a result of Cyrus IMAPd's duplicate suppression? > I've been asked to remove the duplicates. Can anyone recommend a safe > and simple method for doing so? ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html