SMTP, IIS6, The remote server did not respond to a connection attempt. -- iis smtp nntp

iis smtp nntp : SMTP, IIS6, The remote server did not respond to a connection attempt.

Up_All_Night
10/18/2004 11:09:22 AM

I have a Windows 2003 Server running IIS6 and SMTP. Everything has bben
working fine up until a few weeks ago. All of the udden IIS stopped
functioning and the only thing that I could do was to reinstall it. But
after doing that, my SMTP stopped sending messages. The messages sit in the
queue folder for a while and then get put in the bad mail folder.

In the evet log I get the following message:

Message delivery to the host '64.4.50.239' failed while delivering to
the
remote domain 'hotmail.com' for the following reason: The remote server
did
not respond to a connection attempt.

Can anyone please help me with findng out what is hapening?

PS: I am NOT running Exchange Server

Sparky Polastri
10/18/2004 4:08:25 PM

[quoted text, click to view]

Log onto the server, in a dos box:

telnet SOMEMAILSERVER 25

Replace the variable with a valid mail server hostname.

You should get a connection (which might have any number of things in it,
but you are just checking to see if it responds at all).

If you get a "connection timed out", try the same with the IP address.

This checks the basic connectivity, and MIGHT give you an error message if
you get a connection but are getting refused for some reason.

Otherwise, does the mail server have a log? Have you read it? How about
the event viewer?

jeff.nospam NO[at]SPAM zina.com
10/19/2004 1:40:26 AM

On Mon, 18 Oct 2004 11:09:22 -0600, "Up_All_Night" <Up@All_Night.com>
[quoted text, click to view]

Well, the remote server didn't respond to a connection attempt. Does
this happen on *all* mail or just that one message? Or just to
Hotmail accounts? Check the SMTP logs to see the exact exchange
between servers, it may be you're not getting out on port 25 any more.
Possibly a firewall, possibly your ISP blocks it. Or the other end
simply isn't answering.

Peter Karsai
10/19/2004 9:57:26 AM

As 64.4.50.239 resolves to mc3.bay6.hotmail.com
(http://www.dnsstuff.com/tools/ptr.ch?ip=64.4.50.239) and it responds on
port TCP/25, I would recommend the check the firewall policy.

Peter

[quoted text, click to view]

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