Nmap scan report for o15.email.medium.com (149.72.199.196)
Host is up (0.0079s latency).
All 100 scanned ports on o15.email.medium.com (149.72.199.196) are in ignored states.
Not shown: 100 filtered tcp ports (no-response)

Nmap done: 1 IP address (1 host up) scanned in 3.22 seconds