$user .= '@'.$mdomain if $mdomain and $user !~ /@/;
$sf = $sender_from ? $sender_from : $user;
open my $mail,'|-',$sendmail,'-f',$sf,$subuser,$user,$bcc
$user .= '@'.$mdomain if $mdomain and $user !~ /@/;
$sf = $sender_from ? $sender_from : $user;
open my $mail,'|-',$sendmail,'-f',$sf,$subuser,$user,$bcc