I ran the PowerShell script and received the following error:
New-SPTrustedSecurityTokenIssuer –MetadataEndpoint "http://exchange.server.com/autodiscover/metadata/json/1" –Name "Exchange"
New-SPTrustedSecurityTokenIssuer : The remote server returned an error: (403) Forbidden.
At line:1 char:1
+ New-SPTrustedSecurityTokenIssuer -MetadataEndpoint
"http://exchange.server.come.....
+CategoryInfo :InvalidData: (Microsoft.Share....rityTokenIssuer:
SPCmdletNewTrustedSecurityTokenIssuer) [New-SPTrustedSecurityTokenIssuer],
+ FullyQualifiedErrorId : Microsoft.SharePoint.PowerShell.SPCmdletNewTrustedSecurityTokenIssuer
H Barrow Sr. SharePoint Administrator