module Mail:Class for compose and send mail thru a SMTP server. For example :sig
..end
let zz = new Mail.mail;;
zz#set_from "mail@mydomain";;
zz#set_rcpt "mail@yourdomain";;
zz#set_subject "important message";;
zz#set_server "smtp.mydomain";;
zz#send;;
class mail :object
..end