I too have a similar problem that is yet unresolved. Mine however seems to
be to any site hosted by criticalpathway.net. Try pinging that
smtp.whateversiteitis.com or change smtp to mail and see if
criticalpathway.net ends up in the name.
----- Original Message -----
From: "Ayers, Michael"
To:
Sent: Monday, July 16, 2001 10:08 AM
Subject: RE: Off Topic: DNS issue !!! [7:12448]
> I've seen this error with the Microsoft DNS caching servers and some
> Internet Unix boxes. Seems to be a DNS compatibility issue.
>
> Here is the Scenario. You have a Microsoft DNS server that your exchange
> server uses? If so, try adding another Internet DNS server to the
Exchange
> server's DNS server search order.
>
>
>
>
> Thank You,
>
>
> Michael Ayers
> Network Engineer
> > OneNeck IT Services
> (480) 539-2203
> (800) 272-3077
>
>
> -----Original Message-----
> From: Raees Ahmed Shaikh [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, July 15, 2001 10:50 PM
> To: [EMAIL PROTECTED]
> Subject: Off Topic: DNS issue !!! [7:12448]
>
> Dear Friends,
>
> I am facing a very strange problem with our Mailing System Exchange5.5sp4.
> The issue is that we are not able to send email message to some of the
sites
> on the internet. Most of the other popular sites , you can say 90% of the
> sites are reachable by our email clients. But when the clients try to
send
> message to those few site, they get and Non-Delivery-Report saying that
the
> mail could not be delivered. Strange enough that email address is
> reachable through yahoo, hotmail and other sites.
>
> I have checked our router for any access-list blocking but I am sure
nothing
> is of that sort, no access-lists are controlling those addresses. Our ISP
> from whom we are connected to the internet is also able to reach that
sites.
> But we using the ISP's DNS servers for name resolution cannot connect to
> those particular hosts.
>
> One strange behavior though, when I tried to trace route a website add,
for
> that particular mail host, I is taking more than 15 hops and then declared
> unreachable by our Static Router, No Dynamic protocol is running between
us
> and our ISP, we are using default route.
>
> Any help or insights would be valuable and really be appreciated.
>
> I know this has nothing to do with Cisco, but the fact is Applications,
and
> User Usability is driving the Technology. so this mail is not so uncommon
> for a Cisco SE.
>
> Thanks and Regards,
>
> S. Raees
>
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of
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