Sendmail not accepting connections on port 25

Bill Tillman btillman99 at
Sat Jul 23 20:51:17 UTC 2011

--- On Thu, 7/21/11, Bernt Hansson <bah at> wrote:

From: Bernt Hansson <bah at>
Subject: Re: Sendmail not accepting connections on port 25
To: "ssgriffonuser" <ssgriffonuser at>
Cc: freebsd-questions at
Date: Thursday, July 21, 2011, 3:31 AM

2011-07-20 06:24, ssgriffonuser skrev:

> I still can't telnet in from an external network.

To me, that sounds like your external network might be blocking outgoing traffic on port 25.

Can you connect to any other mailservers on port 25?

%telnet 25
telnet: connect to address Connection refused
telnet: Unable to connect to remote host

My isp is blocking outgoing traffic on port 25.
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I am not surprised. Like in my previous reply, every ISP I've ever worked with blocks ports 25. They have this done by their 3rd tier techs because when you call them for help they will be clueless as to what you're talking about. The thing I've found with Comcast is they do what's called black listing your IP address with some service. They will claim that your server has been sending spam. When it actuality all they are doing is forcing you to go to their sales people and pay extra if you want to run a mail server on your LAN. Gone are the days when I could run my own mailserver at home.

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