RE: Combination Exchange/ISA issue. Help, please!!?! I'm stumped!!!

Good Idea!!!! I'll get them on the horn now.  Will post as soon as I
talk to them.

Thanks.


Ian

-----Original Message-----
From: Jeffrey Robillard [mailto:jrobill@xxxxxxxxxxxxx] 
Sent: Tuesday, January 22, 2002 2:36 PM
To: [ExchangeList]
Subject: [exchangelist] RE: Combination Exchange/ISA issue. Help,
please!!?! I'm stumped!!!

http://www.MSExchange.org/


it could be that fedex is blocking you.  try calling fedex's IT
department and resolving it with them.

-----Original Message-----
From: Ian Sterling [mailto:i_sterling@xxxxxxxxxxx]
Sent: Tuesday, January 22, 2002 3:34 PM
To: [ExchangeList]
Subject: [exchangelist] Combination Exchange/ISA issue. Help, please!!?!
I'm stumped!!!


http://www.MSExchange.org/




OK, I'm stumped.  I am posting this to both the ISAServer.org list and
the 
Exchangeserver.org list, so please excuse the cross-post, but I just
haven't 
been able to determine where my main problem is coming from.  Any 
help/suggestions would be greatly appreciated.

I have Back Office Server 2000 on a multi-server setup.  I have 3
servers 
(192.168.1.1 & external = ISA; 192.168.1.2 = SQL/PDC; 192.168.1.3 = 
Exchange).
The PDC is also internal DNS (with a forwarder to our ISP's DNS set-up),

DHCP, and the main file server.  All clients are running Outlook 2000 or
XP. 
  My problem comes with trying to send mail to a specific external
domain 
(user@xxxxxxxxx).  When sending mail to a contact in the fedex.com
domain, 
any user inside the network will receive an NDR and then a delay 
notification.  The Exchange manager shows that the messages are in the 
queue, but they show (Remote Delivery).  Eventually, a final NDR will be

delivered to the sender of the e-mail, and the message times out.  
(Fedex.com seems to be the only domain I have had this issue with.) {Of 
course, I'm not blocking fedex.com-that I'm aware of, at least.  The
only 
things that are blocked using filters are message attachments (.exe,
.ini, 
.scr, etc.) and known virus subject lines (I Love you, "Hi", etc).

I'm pretty sure that the internal servers are both working fine as
Secure 
NAT clients, because I can fully access the internet from both servers
using 
the standard allowed protocols.  However, I have noticed that I cannot
do a 
NSLOOKUP from either internal machine.  The ISA server, of course, can
do 
full NSLOOKUP without any problems.  (I installed DNS on it to see if
maybe 
that was an issue, and the results are the same from the internal
servers.)

Fedex.com is the only domain that I can't send e-mail to, though, even
with 
the NSLOOKUP issues.

Help!!!!! Can someone point me in the right direction here?  I thought
all 
rules & protocol definitions were set up correctly (I even have a client
set 
defined for the internal servers, and I've checked the protocol
definitions 
and rules to no avail.)

Thank you for your help,


Ian Sterling



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