SMTP TLS Certificate Selection

Microsoft Exchange Server 2007 will reach end of support on April 11, 2017. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.


Applies to: Exchange Server 2007, Exchange Server 2007 SP1, Exchange Server 2007 SP2, Exchange Server 2007 SP3

Understanding how the Microsoft Exchange Transport service selects certificates for Transport Layer Security (TLS) helps when you troubleshoot Domain Security and mail flow between Hub Transport servers and Edge Transport servers.

The following topics explain how certificates are selected for three TLS scenarios.