[Dovecot] Multiple copies of a message

[Benjamin R. Haskell]

> Apologies.  It seems that I forgot to switch on list management in kmail.
> I've re-sent the message, this time to the list.  It should arrive along with
> this.
>

In kmail, are you using disconnected IMAP? A snippet from an email I sent 
to the Alpine (email client) list: (the last two links are the most 
interesting)

> I've never seen kmail mentioned in a positive context. Its maildir 
> support is broken (doesn't follow the same naming rules as most 
> MTAs/MDAs for subfolders. Not a "real" standard, but it is a de facto 
> standard), and it eats IMAP mail. At the least, warn your correspondent 
> to stay away from kmail's "disconnected IMAP" feature:
>
> [1] http://lists.kde.org/?l=kdepim-users&m=113877863022834&w=2
> [2] https://bugs.launchpad.net/kdepim/+bug/61155
> [3] https://bugs.kde.org/show_bug.cgi?id=134292
> [4] https://bugs.kde.org/show_bug.cgi?id=104956