I have almost the identical problem, except I am connecting via OT/PPPQuote:> We installed the Microsoft Exchange Client for Macintosh application v. 4.0 on
> a Power Macintosh running under System 7.5.5 and Open Transport 1.1.2 using the
> TCP/IP protocol (not AppleTalk). However, we can't get it to read mail from
> the Exchange server (SP2) running on Windows NT 4.0.
> We can ping the server IP address OK. In the Microsoft Exchange Server
> properties, we can enter the server name and the user mailbox name and push the
> "Check Name" button, and it seems to find the mailbox just fine, because it
> changes the server and mailbox names from the aliases to the full names and
> underlines them. This same user mailbox works just fine from a Windows 95
> Exchange client.
> However, when we start the client application, a dialog box error is displayed
> "Your Microsoft Exchange Server is unavailable.
> "You can retry connecting to the server using the network, or work
> offline and connect using dial-up networking.
> "Network problems are preventing connection to the Microsoft
> Exchange Server computer. Contact your system administrator if this
> condition persists."
> The client then continues and gets other dialog error messages indicating that
> the server mail folders are not accessible.
1.0. When I enter the IP address of my Exchange Server and the mailbox
name, the Check Name button will always return an error the first time:
"The name cannot be resolved". When I click OK and do a Check Name
again (without changing anything!) it finds the name of the Exchange
Server (Oscar) and the correct mailbox. Great, but when I run the
Exchange client, I get the dreaded "Your Microsoft Exchange Server is
I've tried all of the suggestions in this thread so far. If anyone can
offer any more suggestions, I'd be happy to send you e-mail once I get
-=University of Illinois