[Dovecot] Reproducible duplicate messages bug with Mail.app+Dovecot

Andrew Moran amoran at forsythia.net
Sun Feb 18 19:00:51 UTC 2007

Just a final followup on this issue.   I tried a beta build of the  
Mail.app that comes in Leopard and I couldn't reproduce the problem,  
so I'm just going to chalk this up to Mail.app weirdness.

One difference I do notice is that in Mail.app 2.1, when I delete  
messages, the messages don't actually get removed from the server  
until I quit Mail.app.  (I'm not an expert in IMAP but I think that  
means its marking it as deleted but not expunging until quitting,  
which I think is normal behavior for an imap client?)   In the  
Mail.app, the messages disappear from the server as soon as I click  
on another folder.   I'm going to guess this has something to do with  
the duplicated messages issue.

Anyway, since it's not that annoying and it seems to be fixed in  
future versions, I'm going to lay this one to rest.  Thanks for  
everyone's help on it.


On Feb 12, 2007, at 10:44 AM, Andrew Moran wrote:

> Hey Timo,
> Thanks for the response.
> Yes, the original set is still gone, which is the odd thing about  
> this.   It's only the new set that show up duplicates.   And as for  
> my Trash settings, I have it "Move deleted messages to the Trash  
> mailbox" and "Store deleted messages on the server" checked.
> I'm surprised you aren't seeing the same behavior as myself as we  
> have very similar setups.   I have tried using different machines,  
> and different accounts, and I always get the same behavior --  
> messages show up twice after moving messages if  other messages  
> were deleted (but not expunged) in that folder.
> Someone else suggested I use dovecot logging, so I'll look into that.
> --Andy
> On Feb 12, 2007, at 9:00 AM, Timo Sirainen wrote:
>> On Sat, 2007-02-10 at 12:00 -0800, Andrew Moran wrote:
>>> Server: Dovecot 1.0rc22 using Maildir on FreeBSD 6.1
>> Linux here.
>>> Client:  Mail.app 2.1 on OS X 10.4.8
>> Same here. Says 2.1 (752/752.2).
>>> 1) Create a new imap folder (let's say "bar")
>>> 2) Drag more than one message (let's say 3 or 4) from existing imap
>>> folder "foo" to new folder "bar".
>> By this I suppose you mean the move operation, which does internally
>> COPY + STORE \Deleted for the selected messages.
>>> 3) Click on new folder "bar" and see messages in there.
>>> 4) Select messages and delete them (Delete key).  Messages are gone
>>> as expected.
>> So just mark them deleted, no expunge?
>>> 5) Go back to original folder "foo" and drag a few more messages  
>>> into
>>> new folder "bar"
>>> 6) Click on bar.
>>> 7) You will notice that all the second set of messages show up  
>>> twice.
>> The first set is still gone?
>> I couldn't reproduce it. What Trash settings do you have? Anyway like
>> others suggested looking at rawlog output would be helpful in showing
>> what goes wrong.
>> Also have you tried recreating your Dovecot account in Mail.app? That
>> alone might fix it..

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