I have read several threads regarding issues around sending email from Sitefinity while not logged in local to the machine or not using http://localhost
on the machine. I have tried all the recommendations and have yet to resolve this. I've tried deleting the dll from Assemblies and allowing it to regenerate with no success. Logged in locally to the machine using localhost I can send test mails and subscription sends with no problems. I've upgraded to 3.7 with promises that each version would fix this. It seems to linger. I tried setting my anonymous account to a user that has administrative rights but still no success. My understanding is that the smtp functionality is using a generated virtual root url that is embedded in the generated dll. How do you suggest I resolve this situation? It has been persistent for several months. This site started at 3.5 and has now been upgraded twice to 3.7.