Talk:Using the mna tag

When I try to use the MNA tag after the default installation of the mindreader package, I get an error: "Error trying to send message via: The transport failed to connect to the server." How can I debug the connection process? My ISP requires my login to be in the form username@domain.com or username+domain.com. Could this be part of the problem? It used to be that I had to download a small smtp utility to use the email capability. Is that still true?