Exchange Server is unavailable

[toksoladuti]

A user had Office 2000 installed which worked fine with our Exchange Server 2003. He upgraded to Outlook 2003 but then could not access Exchange 2003. He gets the following message: "Your Microsoft Exchange Server is Unavailable" It then gives you the option to: Retry, Work Offline or Cancel. I get a similar message if I try to re-create the profile. I have checked the RPC entries in the registry but this appears to be all there. I've also reinstalled Office 2003 but still can't access Exchange 2003. All others and workstations can access the Exchange without any problems. Any help would be greatly appreciated.

Thanks.

 

[ShackDaddy]

I assume that you can ping the server from the client, right?

When the Outlook 2003 client wants to contact the Exchange server, first it asks a local Global Catalog (GC) server for the Exchange server's IP. Maybe you can't reach the GC.

What happens when you ping your domain controller (GC) by IP address using the /a switch? This should resolve the IP to a name, and, along the way, tell you if you are properly resolving the fully qualified domain name or not. You should get the full name (server.domain.com) in the response. If that's not happening, make sure that this client is pointed to the exact same DNS servers as your other clients.

If you've checked all this, and still haven't found the reason for the failure, you probably need to unload TCP/IP on the client at load it again; your IP stack may have gotten corrupted.

ShackDaddy

 

[toksoladuti]

DNS is definately fine and I've tried uninstalling and then, after a restart, reinstalling TCP/IP (it's a Windows XP Pro machine).

 

[PuzzledUNIX]

If the other clients are connecting fine and everything listed above is working: check if WinXP has a latest pack (with DSclient installed. Disjoin it from domain and join it back. I almost sure that Exchange does not allow this station to communicate due to the Digital signing..or account permissions.

Regards,
PuzzledUnix.

 

[rpaverd]

Has anyone managed to resolve this issue?

I am experiencing the same problem; user can access OWA without any problem, but I cannot get Outlook to connect with Exchange server...
DNS is fine
Reinstalled TCP/IP
Disjoined and rejoined domain

Anything else - I am becoming desperate!

Richard

 

[nsears]

Check there is an entry in the hosts file. I had the same problem and this resolved it for me.

 

[rpaverd]

Tried an entry in the hosts file for the exchange server - no success...

Thanks

Richard

 

[proudusa]

Did anyone find the answer?

I have users accessing exchange no problem. The last two accounts i created on the domain with exchange mailbox cannot access the exchange server (SBS2003). They access the network no problem but when i try adding exchange to their outlook client it says it cannot resolve the account. DNS is fine as the server replies back to a ping with FQDN.

I do have 2 user mailboxes for old employees that i will be removing. Could this be because of a license issue? ONce i remove those 2 we'll be back to the correct number of licenses.

Thanks

 

[proudusa]

The exact message it gets is:
The action could not be comleted. The name could not be matched to a name in the address list.

google.