![Could not establish trust relationship for the SSL/TLS channel](http://www.adventuresinsharepoint.co.uk/wp-content/uploads/2014/09/SSL_Error-150x150.jpg)
Could not establish trust relationship for the SSL/TLS channel
Today I tried to add an Exchange calendar overlay to an existing calendar in SharePoint 2010 but encountered the following error: Could not establish trust relationship for the SSL/TLS secure channel with authority ‘<mailserver>’. I have already added the trust…