Outlook 2000 versus Outlook 2003 on Exchange 2003

[Guest]

My new environment has every version of Office since 2000 with Exchange 2003
SP2 on Windows 2000 Sp4 on the backend.

The boss has Outlook 2003 and goes balistic when someone with Outlook 2000
does not receive the emails she sends within the same split second as
everyone else, particularly those with Outlook 2003.
I have tested this quasi-scientifically and messages sent from 2003 and 2007
clients to other 2003/2007 clients arrive immediately. The 2000 client,
however, did not receive anything for more than 5 minutes until I hit
send/receive and everything came in at once. I only tested it on one 2000
client.

Assuming there are no network or other issues, is there an intelligent
explanation regarding why there is delivery latency for Outlook 2000 clients?
Can it be configured to check for messages on the server more often? I can't
find an option for such.

Thanks for your help. I need to be armed with something official when
making my case for a company wide upgrade to the same darn version of Office.

 

[Roady [MVP]]

Nope, if anything it should be the other way around; Cached Exchange Mode in
Outlook 2003 and 2007 will cause a delay in receiving messages of up to 60
seconds.

If Outlook 2000 doesn't receive messages instantly they are either in
Offline Mode (File-> Work Offline) or your internal firewall solution blocks
UDP messages for Outlook.