Postful是一个提供使用Email发送邮件（这里是指印刷的信件）服务的网站。你通过将你要发送的邮件内容Email发送到Quickletter@postful.com,将要发送到的邮件地址作为Email标题，Postful可以帮你将Email打印，然后帮你将邮件寄送到指定地点。可以将Postful理解成一个在线邮局，你可以通过Email就可以发送纸质的信件。Postful会向你收取0.99$的费用。 不过目前Postful处于内测阶段，还无法注册，如果你想体验一下，可以发送Email到feedback@postful-inc.com索取邀请。相关阅读推荐: Postful上提供的功能介绍链接：http://postful.com/
译文:
Postful: Online post office
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/