Exchange and SMTP over TLS
Posted on 2014-03-02
I am looking to setup SMTP over TLS for several clients who all are running Exchange. I am not looking to FORCE TLS at this time but would like:
Exchange to first attempt an SMTP over TLS connection FIRST. If this cannot be negotiated, then fail back to regular SMTP.
My initial searches did not return many good guides on this.
All clients are running either Exchange 2010 or 2013.