Charles Marcus schrieb:
  

i never noticed such behavior using thunderbird imap ( linux , windows )
with courier or dovecot, are you sure that its not setup related?
After all apple mail seems to be broken with imap
      

I always thought it may be related to the 'Auto-save' option in TBird,
because most people here in our office use it (including me). It seems
that any message that gets auto-saved is a prime candidate for this
happening.

    

Hi,
sorry i have this option too
and i never noticed any problem
with thunderbird , it works like it should and never something
unexpected happend.