[Dovecot] Can't delete certain messages

[Charles Marcus]

On 2010-09-22 5:03 PM, Stan Hoeppner <stan at hardwarefreak.com> wrote:
> IIRC, by default, Thunderbird only performs expunge and trash folder 
> emptying upon exit (though it's configurable with a check box),

By default neither of these are checked, but yes, there are two checkbox
options, one to Expunge the Inbox on exit, and one to Empty the Trash on
exit.

> Also, worthy of note, is that TB's "Trash" is a local folder by
> default, NOT an IMAP folder.

This is incorrect. We've been using TB since about version 0.8, and I
have set up many hundreds of Thunderbird profiles over the years. I
don't recall this ever being a default, but it certainly is not the
default now. For IMAP accounts, all special folders - Sent, Trash,
Drafts and Templates - are (and have been for as long as I can remember)
IMAP folders.

> (unless some genius admin relocated everyone's Trash folder to IMAP 
> storage or a network share via some ill advised group policy etc).

Neither Firefox or TB have native GPO support (I wish!), although yes,
some admin could have been changing this by pushing out custom configs
somehow...

-- 

Best regards,

Charles