Nmap scan report for mail.orion-group.net (103.17.180.154)
Host is up (0.28s latency).
Not shown: 94 filtered tcp ports (no-response)
PORT     STATE  SERVICE
25/tcp   open   smtp
113/tcp  closed ident
443/tcp  open   https
587/tcp  open   submission
993/tcp  closed imaps
3389/tcp open   ms-wbt-server

Nmap done: 1 IP address (1 host up) scanned in 6.68 seconds