Node:Signing the Message, Next:Printing Another Message, Previous:Printing And Saving the Message, Up:Composing Mail
To save you the effort of typing your signature at the end of each
message, you can use ~a or ~A escapes. If your signature
occupies one line only, save it to the variable sign and use
~a escape to insert it. Otherwise, if it is longer than one
line, save it to a file, store the name of this file in the
variable Sign, and use ~A escape to insert it into
the message.