Nmap scan report for cluster8a.eu.messagelabs.com (34.253.63.114) Host is up (0.15s latency). rDNS record for 34.253.63.114: ec2-34-253-63-114.eu-west-1.compute.amazonaws.com Not shown: 999 filtered tcp ports (no-response) PORT STATE SERVICE 25/tcp open smtp Nmap done: 1 IP address (1 host up) scanned in 14.40 seconds