First sign up for an account at smtpcorp.com. Then get to a Telnet SMTP prompt.
Here's the code snippet:
PRDW("ehlo");
PRDW("auth login");
PRDW("c2JyaWdodDNz"); //username google base64 encoder
PRDW("c20dkdkks"); //password
PRDW("MAIL From: <name@gmail.com>");
PRDW("RCPT To: <name@gmail.com>");
PRDW("DATA");
PRD("To: Name <name@gmail.com>");
PRD("From: Steve Bright <name@gmail.com>");
PRD("Subject: Sent by WiFly");
PRD("Text goes here");
PRD("Line2");
PRDW(".");
PRDW("QUIT");