FIX #6094 no mail from for sendmail but there is a mail from for notifications

install/scripts/testSmtp.php

@@ -25,7 +25,7 @@
      $MAILER->smtp_host     = $host;
      $MAILER->smtp_user     = $user;
      $MAILER->smtp_password = $pass;
-     $MAILER->mailfrom      = $mailfrom;
+     //$MAILER->mailfrom      = $mailfrom;
      $MAILER->domains       = $smtpDomains;
      if ($auth == 1) {
          $MAILER->smtp_auth = "true";