Nmap scan report for mxs.mail.ru (94.100.180.31)
Host is up (0.078s latency).
Not shown: 97 filtered tcp ports (no-response)
PORT    STATE  SERVICE
25/tcp  open   smtp
465/tcp closed smtps
587/tcp closed submission

Nmap done: 1 IP address (1 host up) scanned in 4.13 seconds