The nmap program outputs the result below.
root@xn--hadibakalm-5ub:~# nmap -p 25 hotmail.com-------------------------------------------Starting Nmap 5.00 ( http://nmap.org ) at 2012-07-30 01:27 EESTWarning: Hostname hotmail.com resolves to 4 IPs. Using 65.55.72.183.Interesting ports on origin.sn134w.snt134.mail.live.com (65.55.72.183):PORT STATE SERVICE25/tcp filtered smtp Nmap done: 1 IP address (1 host up) scanned in 0.97 seconds------------------------------------------- > Subject: Re: no route to host > To: postfix-users@postfix.org > Date: Sun, 29 Jul 2012 18:20:04 -0400 > From: wie...@porcupine.org > > Michael J Wise: > > > > On Jul 29, 2012, at 3:03 PM, Engin qwert wrote: > > > > > Hello, sorry for sending too many information which may be irrelevant > > > but I want to post anything I think it causes the problem. > > > > 220 xn--hadibakalm-5ub ESMTP Postfix powered by Easy Hosting Control Panel > > (ehcp) on Ubuntu, www.ehcp.net > > > > Well, it does appear to be reachable from the outside world, so THAT's > > good?. > > Confirmed. Inbound SMTP connectivity appears to work. You may need > a network sniffer to find out why outbound SMTP fails. > > Wietse
