Re: Problem from Comcast Network to The Planet

[Jay Hennigan <jay () west net>]

On 3/5/10 1:33 PM, Zachary Frederick wrote:
> We have been having a problem emailing to a customer whose server is hosted by The Planet 
> (http://www.theplanet.com/). Our mail server is hosted in-house on a comcast business connection.
>
> IP address of our server is: 173.13.45.23
>
> Customers mail server is: 69.93.203.243
>
> I cannot telnet to port 25 on their server, and they cannot telnet to port 25 on ours.
>
> If I try to connect to their mail server from a different network such as my home internet connection, I can connect.
> We do not do any firewalling that would block this in anyway. We were able to send and receive email to them when we 
> used Qwest for our connection, before we switched to Comcast.
>
> Comcast has said the problem is not on their end because it times out at The Planet.
> The Planet doesn't have much interest in speaking with me, because I'm not their customer.

Have the recipient who is a The Planet customer open a case with them.

For what it's worth (not much, I know), it works from here.  Mail server
is likely behind a PIX with SMTP fixup enabled.

~ jay$ telnet 69.93.203.243 25
Trying 69.93.203.243...
Connected to mx.insurancewebsitebuilder.com.
Escape character is '^]'.
220
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--
Jay Hennigan - CCIE #7880 - Network Engineering - jay () impulse net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV