This actualy happens after the OL 2002 SP1 install.
The issue is UDP vs. RPC for New mail notifications.
The issue is somewhat an XP sp2 issue because W/Firewall will
automaticly block any UDP traffic. (fix: add Outlook to exceptions for
w/firewall.)
Unfortunatly when you instal SP1 for Outlook 2002 You will notice a new
Reg Entry forcing Outlook to use RPC "ForcePolling" for New mail
notifications.
[HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\RPC]
"ForcePolling"=dword:00000001
The value "1" forces outlook to use RPC to poll the Exchange server
every so often to recieve NMN's (I believe default is 60 sec on the
Exchange server.)
I have tried seting this value to "0" with no luck. Every time you
restart Outlook it changes the value back to "1".
In my efforts to re-enable UDP I have come across only one solution.
"UPGRADE TO OFFICE 2003"
Office 2k3 adds an additional registry value that allows you to specify
a UDP port for outlook to use when recieving NMN's
"HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\RPC
Key: FixedUDPPort
Value: DWORD"
The decimal value of the port number must be between 1024 and 65535.
So my conclusion is.. You cannot force UDP NMN's after Outlook 2002
sp1 instal. Microsoft allowed the ability, but only in Outlook 2003.
If anyone else can figure out how to do it in 2002 Please reply. I
don't feel like upgrading 300 users just for NMN's to work faster.
References:
http://support.microsoft.com/kb/264035/EN-US/
http://tinyurl.com/4385b