POP, IMAP, fowarding, and duplicates.

[dmcheng]

Version: 2008
Operating System: Mac OS X 10.5 (Leopard)
Processor: Intel
Email Client: imap

Hello. I have an office where all users retrieve mail via POP. One user has Entourage 2008 and we have started a Google Apps mail pilot with her.

Instead of routing all mail through Google servers for the pilot (as they recommend), I'm just forwarding the user's specific address to google's mail servers. In Entourage, I created an IMAP account for the Google address and have left the POP account active.

Both IMAP and POP accounts are working fine, except newly arrived messages in the Entourage POP folder are always duplicated. This is happening only at the entourage level, because when I check the POP account via webmail, there are no duplicates.

I've looked at the message headers for each set of POP duplicates, and there's always one message with the same header as the corresponding message in the IMAP folder.

So it seems that Entourage is copying the message from the IMAP to the POP folder, but I've checked the rules and nothing is there.

I've run a database verification and installed the latest updates. The computer is running OS X 10.5 Leopard with the latest updates.

Any ideas?

Thanks
David

 

[Ed Kimball]

Version: 2008
Operating System: Mac OS X 10.5 (Leopard)
Processor: Intel
Email Client: imap

Hello. I have an office where all users retrieve mail via POP. One user has
Entourage 2008 and we have started a Google Apps mail pilot with her.

Instead of routing all mail through Google servers for the pilot (as they
recommend), I'm just forwarding the user's specific address to google's mail
servers. In Entourage, I created an IMAP account for the Google address and
have left the POP account active.

Both IMAP and POP accounts are working fine, except newly arrived messages in
the Entourage POP folder are always duplicated. This is happening only at the
entourage level, because when I check the POP account via webmail, there are
no duplicates.

I infer that you mean that each message appears twice in the Inbox On My
Computer, as well as in the Inbox for the IMAP account. Is that correct?

I've looked at the message headers for each set of POP duplicates, and there's
always one message with the same header as the corresponding message in the
IMAP folder.

And what is the header of the "other" duplicate message in the POP folder?

So it seems that Entourage is copying the message from the IMAP to the POP
folder, but I've checked the rules and nothing is there.

I've run a database verification and installed the latest updates. The
computer is running OS X 10.5 Leopard with the latest updates.

Any ideas?

Thanks
David

I would not recommend connecting to the same account via both POP and IMAP.
Why are you doing so?

I think IMAP is better if the user will be accessing the account from
multiple computers, while POP is better if the user often has to work with
her mail offline.

 

[Diane Ross]

In Entourage, I created an IMAP account for the Google address and
have left the POP account active.

This is probably where the problem is duplicating. The message goes to the
pop account and is download then the copy that was sent to Gmail is also
downloading.

Disable POP.

 

[dmcheng]

Sorry I should have clarified - the google IMAP account is a different address. The IMAP account doesn't show any duplicates, only the POP under On My Computer.

Headers: for each set of POP duplicates, one header shows the POP address in the delivery details mail, and the other shows an extra few lines of details that include the google mail address, even though this is the POP folder.

 

[Ed Kimball]

Sorry I should have clarified - the google IMAP account is a different
address. The IMAP account doesn't show any duplicates, only the POP under On
My Computer.

Headers: for each set of POP duplicates, one header shows the POP address in
the delivery details mail, and the other shows an extra few lines of details
that include the google mail address, even though this is the POP folder.

It sounds like either
a) the IMAP account is set to forward to the POP account or
b) there is a rule in Entourage to copy all received mails from the IMAP
inbox to the On My Computer inbox.

If a) turns out not to be true, check under Tools>Rules and Tools>Mailing
List Manager to see if there are any rules in either place that might be
causing this.

 

[dmcheng]

I've checked all that - the IMAP is not set to forward, and there are no rules in Entourage.

Also the client is saying some messages are not appearing in the IMAP inbox. When I go to Google to check on this, I find that those messages have been deleted, and I see them in the google trash folder in the gmail web interface. However, the deleted messages don't appear in Entourage's gmail trash folder.