Help for this page
open(SENDMAIL, "|/usr/lib/sendmail -t"); print SENDMAIL "To: webmaster\nFrom: $mailfrom\n\nThis is the body\n") +; close(SENDMAIL)
$mailfrom="joe@spammer.com\nTo: spam-recipient1@aol.com\n\nThis is the + spammer's message body\n.\n"; </pre> to cause you to send arbitrary mail to arbitrary users.