On Wed, Aug 18, 2010 at 01:33:17PM +0200, Joost Kremers wrote:
I use Mutt to access my mail account with fastmail.fm over IMAP. A few weeks ago I started getting the message "Mailbox was externally modified. Flags may be wrong" every time I change to a different mailbox on the server. This message usually appears if I'm logged into the server twice (e.g. from two different computers, of through webmail and IMAP at the same time) but now it always appears, even if I'm just logged in once. (I'm certain I'm not accidentally logged in twice, BTW.)
Which version of Mutt are you using?The next step is to compile Mutt with --enable-debug if you have not already done so. Then run "mutt -d 5" and look at what the IMAP server is reporting when you try to change folder and trigger the error. The log file will be in ~/.muttdebug0.
me