09/01/20 01:33:48 9Oxe1oUt0
# nmap smtp.live.com -PN
Starting Nmap 4.76 ( URLﾘﾝｸ(nmap.org) ) at 2009-01-20 01:32 JST
Interesting ports on smtp.live.com (65.55.172.254):
Not shown: 998 filtered ports
PORT STATE SERVICE
25/tcp open smtp
587/tcp open submission
587も空いてるみたいよ。