dovecot - Aug 2008 - IMAP inbox: cannot delete tagged messages or change their tag

Hello, a bit of a problem with Dovecot. Version is 1.0.15 and is a 
default install (no changes to config) from FC8 repository... except 
that Dovecot is configured to use Maildir

I have a user on the system who uses the tags in Thunderbird (Important, 
Personal etc). When she tags the messages they cannot be deleted and 
their tags cannot be changed.  When deleting a message from the IMAP 
inbox it momentarily disappears and moves a copy to the Trash but when 
the IMAP inbox is reloaded the message reappears. The same happens when 
I try to change a tag: it comes back with the previous tag.

Untagged messages can be freely deleted. Also, this problem does not 
happen if the messages are in a IMAP folder. They can be freely deleted.

The problem seems specific to Dovecot, not Thunderbird, as I am able to 
tag and delete messages in another IMAP account. Also, accessing the 
same IMAP account using OS X Mail the messages come back after deleting 
them.


Where should I start looking for a solution to this problem?

On Aug 12, 2008, at 7:17 PM, Epimedia wrote:
> Hello, a bit of a problem with Dovecot. Version is 1.0.15 and is a  
> default install (no changes to config) from FC8 repository... except  
> that Dovecot is configured to use Maildir
>
> I have a user on the system who uses the tags in Thunderbird  
> (Important, Personal etc). When she tags the messages they cannot be  
> deleted and their tags cannot be changed.  When deleting a message  
> from the IMAP inbox it momentarily disappears and moves a copy to  
> the Trash but when the IMAP inbox is reloaded the message reappears.  
> The same happens when I try to change a tag: it comes back with the  
> previous tag.
>
> Untagged messages can be freely deleted. Also, this problem does not  
> happen if the messages are in a IMAP folder. They can be freely  
> deleted.
>
> The problem seems specific to Dovecot, not Thunderbird, as I am able  
> to tag and delete messages in another IMAP account. Also, accessing  
> the same IMAP account using OS X Mail the messages come back after  
> deleting them.
>
> Where should I start looking for a solution to this problem?
Sounds pretty weird. But I guess I'd first look at the rawlog output  
of what the clients send to Dovecot and what Dovecot sends back. Also  
are there any error messages in Dovecot's logs? It kind of sounds like  
the mailbox could be read-only, but there should be no difference  
between expunging a message that has tags ("IMAP keywords") and that  
doesn't have.
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