[Dovecot] expire-tool and userdb returned mail location

[Tapio Sokura]

Timo Sirainen wrote:
> On Sat, 2009-12-12 at 13:46 +0200, Tapio Sokura wrote:
>>I'm having problems with expire-tool in Dovecot 1.2.6 not finding the 
>>mailboxes. I had

> Here's a simple way that should work:
> 
> mail_location = mbox:~/mails:INDEX=~/indexes
> 
> and then you can also drop the mail field from userdb.

I did that and now expire-tool is finding the mailboxes and indexes, but 
not removing any messages. It updates the timestamps in the expires 
database table 10 days to the future for folders that have 10 day 
expiration time. It also seems to cause the addition of a save date 
(with the timestamp of expire-tool execution) to the first message in a 
folder it looks at.

I did some more digging around with idxview and talking imap to the 
server. It looks like save dates aren't stored when mail is delivered 
(via dovecot LDA) or copied to a folder via imap. I got date.save fields 
to appear into the cache files when I fetched x-savedate via imap as 
shown on the Plugins/Expire page in the wiki. Those save dates were set 
to the time the imap fetch was performed, not to the time when the 
messages were delivered or copied to the folder.

Is this the way it should be working? I've had "expire" listed in 
dovecot's mail_plugins for pop3, imap and lda protocol sections for 
several weeks now.

   Tapio