This is something that RMS advocates: "Once or twice or maybe three times a day I connect and transfer mail in and out. Before sending mail, I always review an

This is something that RMS advocates: "Once or twice or maybe three times a day I connect and transfer mail in and out. Before sending mail, I always review and revise the outgoing messages. That gives me a chance to catch mistakes and faux pas." [1] As other commenters have pointed out it is a feature that is present in a lot of email clients. I suspect that the author uses a web based email solution. [1] http://richard.stallman.usesthis.com/ http://richard.stallman.usesthis.com/