Hi All, New iPod Touch (second-gen) owner here. I really like this little piece of hardware but am having one nagging problem with the built-in Mail application. I've configured it to access my Gmail account through IMAP. I've done this configuration many times with Thunderbird in the past and I know everything looks right (servers, ports, etc.) The problem I'm having is that while I can READ just fine (IMAP syncs to Gmail without a problem, new mails show up, etc.) SENDING mail does not work. Sometimes I get messages like "Sender address invalid". Most of the time, though, the application goes through the motions of sending the messages in the Outbox ("Sending 1 of 5... 2 of 5... etc.") but the messages do not actually get sent. (At the end it still says "5 unsent messages" and when I look at Gmail through the web interface, these unsent messages do not appear). I've checked with the local sysadmin, and no ports are blocked. Any ideas?