Nmap scan report for mail.canasecurities.com.kh (111.90.177.26)
Host is up (0.26s latency).
Not shown: 97 filtered tcp ports (no-response)
PORT    STATE SERVICE
25/tcp  open  smtp
143/tcp open  imap
993/tcp open  imaps

Nmap done: 1 IP address (1 host up) scanned in 10.15 seconds