Return
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Title
NI: Exchange to Domino freebusy fails and BTAvailability webservices test page returns "Failed to Call Exchange webservices - GetUserAvailability()" -
Description
In a resource forest context.
After setting up Windows Coexistence server, when testing using URL http://autodiscover.domino.,DomainName>.com/BTAvailability/Availability.asmx and BT_TestConnectivity, the answer is "Failed to Call Exchange webservices - GetUserAvailability()"
IIS Log on Exchange servers shows a 401 Error (Access Denied) -
Cause
Credentials are in Domain\UserName format -
Resolution
In this case, to be able to address Exchange server in a different domain other than Windows Coexistence server, two variables are set in BTAvailability Application Settings on Windows Coexistence IIS manager :
EWS-username: ewsusername\domain
EWS-password: password
Change the username to SMTP address format (ewsusername@domain.com) instead of domain\UserNameTest the connection and confirm it is successful.