You need to call a SendEmailRequest after you created the email record:
SendEmailRequest sendEmailreq = new SendEmailRequest { EmailId = _emailId, TrackingToken = "", IssueSend = true }; SendEmailResponse sendEmailresp = (SendEmailResponse)_serviceProxy.Execute(sendEmailreq);
http://msdn.microsoft.com/en-us/library/hh210217.aspx
My blog: www.crmanswers.net
Unfortunately, service.Execute() is returning an exception: "an unknown error occurred"
Is this a common error (with known solution(s)) for vets working with SendEmailRequest?
Is your deployment on premise? If so, check the Event Viewer on the CRM server for more information of the error. Once you do that, please post the error details on this thread.
Regards
Roshan