The procedure for unsubscribing to ATHG is simple and similar to that for
all listserv groups.
1) address your post to <[log in to unmask]>
2) leave subject line blank
3) say <unsubscribe ATHG>
4) don't include <> signs!
PS: This works only when you send the unsubscribe command from the email
address which you used when subscribing.