MS Exchange mailbox maintenance

Greetings,

  If an Outlook user downloads mail via pop3, and Outlook is not configured to keep a copy of the message on the server, how long does it take for Exchange 2003 to remove the mail from the user's  mailbox?

 I disabled Outlook keeping a copy of the message on the server today, but I noticed Exchange still shows the same amount of email in the user's mailbox through Exchange System Manager.
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jkocklerAsked:
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Alan HardistyCo-OwnerCommented:
It depends on how long your mailstore retention is set for:

http://www.msexchange.org/tutorials/mf022.html
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Praveen BalanSolution ArchitectCommented:
If you download emails through POP3, the messages are deleted from the e-mail server by default after they are downloaded.

http://office.microsoft.com/en-us/outlook-help/leave-e-mail-messages-on-your-e-mail-server-HA001150793.aspx

look the configuration once again, and try downloading ensuring that the sync is complete and no errors.

-Praveen
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jkocklerAuthor Commented:
Yes the sync is complete, and Outlook is configured not to keep a copy on the server. Yet the mailbox message count is not decreasing in Exchange System Manager. I believe alanhardisty is correct with the mailstore retention setting. My system is set for 30 days. I have Outlook set to clear messages now because Outlook was duplicating downloads, and would randomly download the entire message store, even though the messages were already downloaded previously. Searching around I found that Outlook has had quite a history with this problem, and it is linked to the "keep a message on server" option.
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Praveen BalanSolution ArchitectCommented:
if the download fails from completing the download, the messages are not removed from the server.

look at this post http://www.cibd.com/Support/EmailMultipleMessages.htm

This discusses some common issues with POP3 downloads. This can even happen if you have a corrupted item on your inbox, which is preventing from the succesful sync.

Follow the steps mentioned in the article, that should resolve your issue.

-Praveen
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