After changing our DNS configuration, which is external via our ISP, the users in our offices can use Outlook with no problem. But the users in the smaller sites can no longer connect to the Exchange server. Presently, they use an internal Outlook Web Access 5.5, but this is far from ideal. Do you have any ideas?
Add an entry for the mail server to hosts and lmhosts under C:\windows\system32\drivers\etc and test the connectivity.
Example for Hosts:
Example for Lmhosts:
10.0.1.1 yourmailserver #PRE #DOM domainname
C:\nbtstat –C (check the server name configuration)
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