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Blackberry Internet access through ISA proxy server

Hi all,

I am using MS ISA Server 2004 with latest service pack at my company. We also have a BES server with version
The problem is that when I enable user authentication on the ISA (for name resolution in Surf Control), Blackberry users trying to access the interget get the following error:
Error Code: 403 Forbidden. The ISA Server denied the specified uniform resource locator (URL) (12202)
Is there any setting I need to enter/change on either the BES or ISA to allow blackberry devices access to the internet? Enabling the user authentication is a must-have for reporting purposes.
Many thanks for any help.
1 Solution
Not sure, but I would check the RIM support site or open a ticket with them, since this could get very messy.

I hope this helps !
In the BlackBerry Manager, go to the Properties of the MDS Connection Service (it has MDS-CS in the name).
Then go to Proxy
Proxy Mappings
Make a new Proxy Mapping (or edit the existing if there is one)
By "Universal Resource Locator" fill in a the mask for internet pages (it is regular expression) the deault string will wildcard all
Fill in the Proxy String
Leave User Name blank (if you like the users to type in their username and password)
same for password

If you fill in a Username and Password, all users use the same username/password for autentication.

BlackBerry Consultant
polonium210Author Commented:
Hi Bob

many thanks,

I'd tried this but without success as I wasnt sure about some of the fields. It won't let me add a blank password however? I don't want users to have to log in every time as they will complain, is there any way of preventing this and just allowing transparent authentication?


Go in the properties of the MDS Connection Service and go to HTTP. Try Support HTTP Authentication TRUE
and change the Authentication Timeout.

For the Proxy Mapping, if you create a new one there is no password (even you see ******)

Bob Hillesum
BlackBerry Consultant
Forced accept.

EE Admin
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