Postful is a website that offers letter sending service by email (the printed mail). You can email the content to Quickletter@postful.com, with the mailing address in the subject line. Postful will print the Email and send it to your designated address. Postful can be understood as an online post office, you can deliver the printed letter through email. Postful will charge you 0.99 USD. At present you cannot sign up to Postful, because it is still being tested. If you would like to have a try, you can ask for an invitation by sending an email to feedback@postful-inc.com. Recommended article: the introduced function link on Postful http://postful.com/