24HOURSUPPORT HELPDESK 28 RE NEW SMTP FILTERING
From: "Gary" (gk@no-spam)
Subject: Re: NEW Smtp filtering?
Date: Sat, 21 Jun 2003 21:25:45 +0100


"Clad Monitor" <webmaster@no-spam> wrote in message news:U_2Ja.100575$MJ5.83896@no-spam > Heres a strange one, I left town for a few days last week and returned to > find that I can't send mail though my domains SMTP servers. So I tweaked > with it and found on top of that I cant send mail through any host other > than COX.NET's servers? I have 2 computers in my home one is no more than a > file server with winXP pro that I am currently using to fix the problem > making sure no 3rd party software is the culprit. The computer is directly > connected to the cable modem. From the error I recive it seems the computer > accepts the incomming connection but cannot respond to my connection so it > times out after the 30 seconds.
>
> I called COX but at my dismay a 30 minute hold time forced me to try their > Live Chat online. JT flat told me they are activly enforcing a new poicy of > denying any connections on port 25 and then even before I could finish > reading ended the conversation. (@no-spam Can anyone shed some light on > this?
>
> PS Im on hold with cox as we speak.....
>
>

Does this help, well it wont help but it explains what and why they are doing it.

http://support.cox.net/custsup/email/email_info.shtml
Nasty
Good Luck
Gary

From: Unk (not@no-spam)
Subject: Re: NEW Smtp filtering?
Date: Sat, 21 Jun 2003 20:56:01 GMT

It appears I read the problem incorrectly, I thought it might be a local network problem. Gary's reply is probably the correct answer.
news://8b3Ja.1134$nG4.175@no-spam
Unk

From: Jimchip (jimchip@no-spam)
Subject: Re: NEW Smtp filtering?
Date: Sat, 21 Jun 2003 22:44:53 -0000

On Sat, 21 Jun 2003 13:13:48 -0700, Clad Monitor wrote:
> Heres a strange one, I left town for a few days last week and returned to > find that I can't send mail though my domains SMTP servers. So I tweaked > with it and found on top of that I cant send mail through any host other > than COX.NET's servers? I have 2 computers in my home one is no more than a > file server with winXP pro that I am currently using to fix the problem > making sure no 3rd party software is the culprit. The computer is directly > connected to the cable modem. From the error I recive it seems the computer > accepts the incomming connection but cannot respond to my connection so it > times out after the 30 seconds.
> > I called COX but at my dismay a 30 minute hold time forced me to try their > Live Chat online. JT flat told me they are activly enforcing a new poicy of > denying any connections on port 25 and then even before I could finish > reading ended the conversation. (@no-spam Can anyone shed some light on > this?
> > PS Im on hold with cox as we speak.....

Port 25 blocking is very common- It prevents open mail relays. If you are going to have your own server to connect to then you may wish to investigate the SMTPS protocol.

You'll have to work out the other connection problems with your ISP. Since you hadn't used the system for a few days you may need to reset the modem and get a new IP # lease.

-- Anyone outside my light-cone is dead to me. That's just a rule I have. (lifted from /. Posted by jamie.)