Outlook clients not automatically updating folder after migration from 2003 sbs

Hi All,

Just completed a migration from Exchange on SBS 2003 to Exchange 2010 on Server 2008 R2. Mostly this has gone well, mail flow is not an issue as far as the server is concerned. However, the Outlook clients need to have all their folders and subfolders manually updated by going to the send/receive tab and clicking update folder (even the inbox).  

I've disabled cached mode as a work around but this has lead to a lot of spam appearing in the user's mailboxes as we had previously used the outlook clients to manage the user's spam.

Exchange is using a 3rd party pop connector to download mail from the company's hosting provider, but with cache mode disabled there is no delay from the time I force the pop3 downloader to retrieve the mail to when it appears in their mailboxes. so the problem seems to be something to do with exchange and the outlook clients.

Any advice?

Cheers!
Ignimous VondlechanceAsked:
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Ignimous VondlechanceConnect With a Mentor Author Commented:
Have tried creating a new profile with no luck. I think it was a corrupt ost file... ideleted the ost, then turned cached mode back on. Gonna leave it for a few days to confirm.
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Simon Butler (Sembee)ConsultantCommented:
In cached mode, Outlook and Exchange communicate via push. Exchange tells Outlook that something has changed and then Outlook goes to look to see what that is. You should not need to update the folders manually at all.

Therefore something is blocking the push traffic. That will be outside of Exchange/Windows. Third party firewall (WINDOWS firewall should not be doing so unless you have changed the configuration) or AV software are the usual culprits.

I would also suggest dumping the POP3 connector. There is never any good reason to use one.

Simon.
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Larry Struckmeyer MVPCommented:
Most cases of misbehaving Outlook, with or without Exchange, can be remedied by creating a new OL profile from Control panel/mail.
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