+ Mail Commands
+t <message list> type messages
+n goto and type next message
+e <message list> edit messages
+f <message list> give head lines of messages
+d <message list> delete messages
+s <message list> file append messages to file
+u <message list> undelete messages
+r <message list> reply to messages
+pre <message list> make messages go back to /usr/mail
+m <user list> mail to specific users
+q quit, saving unresolved messages in mbox
+x quit, do not remove system mailbox
+h print out active message headers
+! shell escape
+c [directory] chdir to directory or home if none given
+
+A <message list> consists of integers, ranges of same, or user names separated
+by spaces. If omitted, Mail uses the last message typed.
+
+A <user list> consists of user names or distribution names separated by spaces.
+Distribution names are defined in .sendrc in your home directory.