Reply to thread

Message: <blockquote data-quote="ddpesta" data-source="post: 378094" data-attributes="member: 26662">There is one further cause for a CDO.Message instantiation failure.  It seems by default that .NET uses the loopback address (127.0.0.1) a the origin for the SMTP action.  Therefore, the following must be set in IIS:1.  The IP address for the SMTP site must be set to <all unassigned>2.  Access-Connections - Either allow all, or make sure the loopback address appears in the list of allowed IPs.3.  Access-Relay - Same with Connections</blockquote>