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Cannot see new e-mails on iphone 4 connected to exchange 2003.

Posted on 2011-09-19
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Last Modified: 2012-05-12
The setup:
Windows 2003 SBS SP2
Exchange Server 2003 SP2
--Function level is at Native Mode
--Exchange vDir for mobile access is set to: /exchange-oma

DC - AD
--Function level is at Windows 2000 Native

Internal Outlook clients connect just fine and can send / receive through the Exchange server.

The business gateway is set to forward ports 443 and 25 to the Server IP.

The scenario:
This is the strangest thing but it is happening.

I can add a new account through the iPhone for the exchange server, accept the SSL certificate, and off it goes.

However, I can only see read e-mails on the inbox, sent items, etc.
If any items are new (New emails) they will not show up on the iPhone even if I manually force it to refresh.
Here's where the strange happens: I go to the Exchange OWA and click on the new message to read it... as soon as this happens I can refresh the iPhone and the newly read message shows up on the iphone as a read email.

Any thoughts?

Things I've tried:
Restored the iPhone 4 and updated the software to the latest iOS (4.3.5)
Checked and re-checked IIS permissions for the OMA and Default Web Site.. Ok.
Cross-referenced another server from another client with identical setup and theirs works fine, this one does not..

I'm lost and need some help.



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Question by:CinchIT
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Alan Hardisty earned 500 total points
ID: 36566219
Please add the registry key (to the server) mentioned in my article in the Inconsistent Sync section which relates to Anti-Virus Interference:

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_1798-Exchange-2003-Activesync-Connection-Problems-FAQ.html

This should resolve your issue.

Alan
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Author Closing Comment

by:CinchIT
ID: 36571307
Thank you that did it:

For those looking for the quick answer:
"
Inconsistent Sync:
If you are getting inconsistent Synchronisation from your device to your Exchange 2003 server, please add the following registry key to the server:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\VirusScan
ProactiveScanning      REG_DWORD      1

"
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