I have Configured a TriggeredSend under interactions. Here is the path Triggered Sends > Autoemail
We are unable to initiate an email through REST API from Salesforce. We are testing this in the POSTMAN and receive "404 not found" error.
https://www.exacttargetapis.com/messaging/v1/messageDefinitionSends/key:Autoemail/send
Not sure if I am missing somthing here.