At the moment email is a synonym of mail. This makes mail the to-go tag for both email in general, and the mail(1) command. I propose to use mail-command for the mail command (it's useful to have a tag because a free-form search will have relevant hits drowned in the mass of posts that deal with email). It's not very discoverable, unfortunately, so it would help if there wasn't a mail tag. At least, the main tag should be email.
