http://blogs.technet.com/b/hot/archive/2012/04/26/how-to-configure-iis-smtp-cloud-relay.aspxIf you have on-premises Line of Business (LOB) applications that need to send email and you no longer have an on-premises Messaging environment (Exchange or otherwise), you can use Exchange Online (EXO365) to send these messages. Below are the steps neededen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/hot/archive/2012/04/26/how-to-configure-iis-smtp-cloud-relay.aspx#3527118Wed, 17 Oct 2012 10:10:01 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3527118Acropia<p>I want to do the same thing, but my SMTP relay server keeps saying the TLS server certificate is missing in Event Log: &quot;No usable TLS server certificate for SMTP virtual server instance &#39;1&#39; could be found. TLS will be disabled for this virtual-server.&quot; Any ideas?</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3527118" width="1" height="1">