if ($mail == 1){
open(SENDMAIL,"|/usr/lib/sendmail -oi -t") or die "kann keine Mail verschicken \n";
print SENDMAIL << "EOF";
From: Nagios <monitoring\@xxx.de>
To: Oktay s. <oktay\@xxx.de>
Subject: Toner Bestellung

$mailbody

EOF
close(SENDMAIL);
}