You probably already know this, but just in case you don't, "appid" has to be replaced with your app's real application id, as defined in your appengine-web.xml (for Java) or app.yaml (for Python).
If you knew this already and you still cannot send emails, then you might have found a bug in app-engine. Alternatively, your from address might be blocked by a spam filter. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
