Isis software documentation
This library defines some simple functions for sending electronic mail
(sendmail servername sender receiver message)
(sendmail servername sender [ receiver receiver ... ] message) # alt. form
You can send an email message from inside Isis by calling the
sendmail procedure with the mail server machine to use, the
sender address, the receiver address or list of receiver addresses,
and the message, all as strings. (Yes, it is possible to forge the
sender's address.) This procedure returns True if
successful, or Null if not.
This procedure connects to the sendmail server on the machine you
specify in order to send the messages. Here are a few examples:
(sendmail "media.mit.edu" "firstname.lastname@example.org" "email@example.com"
"Hi Alex. You are a fool.")
(sendmail "media.mit.edu" "firstname.lastname@example.org"
["email@example.com" "firstname.lastname@example.org" "email@example.com"]
"Banjo man is back and better than ever.")