[MandieD]

The latter, which often makes for an interesting conversation at medical offices and shops when I jot down [e-mail]. The FastMail mobile client makes replying to those emails without “breaking character” easy.

[crossroadsguy]

Wow. This is awesome! I wish there was an easy way to do this in Mail.app. While Mailbox.org allows it, my mail client of choice Apple’s Mail needs that <new user name>@tld to be added in Settings.