Undelivered Message Content like Exchange2010 Hub Transport Server FQDN/hostname and IP Address displaying to recipient. which seems as security risk or insufficient information . Please help in order to prevent dns/IP or edit the message contents.
#550 5.7.1 RESOLVER.RST.NotAuthorized; not authorized ##
Original message headers:
Received: from mail.com.pk (10.0.14.17) by
EX1-Server.server.com.pk (10.32.180.3) with Microsoft SMTP Server
(TLS) id 14.3.123.3; Wed, 21 Sep 2013 12:10:44 +0500