Performing a basic port scan (nmap -F mail.cect.org)
Nmap scan report for mail.cect.org (147.156.5.63)
Host is up (0.15s latency).
rDNS record for 147.156.5.63: mox2virt4.ci.uv.es
Not shown: 94 filtered ports
PORT STATE SERVICE
25/tcp open smtp
80/tcp open http
443/tcp open https
465/tcp open smtps
993/tcp open imaps
995/tcp closed pop3s
Nmap done: 1 IP address (1 host up) scanned in 6.25 seconds