Forum Discussion
TEST-OAuthConnectivity | The remote server returned an error: (403) Forbidden
Hello Exchange Tech Community, I have setup a lab environment of Exchange Server 2016 in Hybrid Configuration. I can successfully onboard and offboard mailboxes. OnPrem Exchange Server is I...
All right. FB lookup from EXO to OnPrem direction works but not vice versa.
Here are some snippets of the configuration
Test-OAuth from EXO to OnPrem passes with flying colorsEXO side Test-OrgRel fails just like OnPrem side (shown further below)
EXO side IOC
EXO side OrgConfigEXO side OrgRelationshipOnPrem side FederationTrust passes successfullyOnPrem side OrgRel Test fails.OnPrem side IntraOrg ConfigurationOnPrem side IOCOnPrem side OrgRelationshipOnPrem side AuthConfig has same certificate as Get-ExchangeCertificate cmdletOnPrem side Get-ExchangeCertificate. Certificate has private key and valid.OnPrem side Availability address space.