Thanks, Jennifer. That's what I've been doing, but it helps to know what
others are doing, and what they infer from the results.
Your specific comments on forwarders and smtp logging were helpful.
Thanks again.
Regards,
- Bob
-Original Message-
From: Jennifer Baker [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 28, 2001 7:02 PM
To: MS-Exchange Admin Issues
Subject: RE: Troubleshooting NDR's
IMHO, telnet is the best tool for troubleshooting NDRs.
This usually tells me everything I need to know:
Telnet host 25
Ehlo mail.fluke.com
Mail from: [EMAIL PROTECTED]
Rcpt to: [EMAIL PROTECTED]
Agreed, if the host is a forwarder then there is not much you can tell (ie.
Error 552 or 553), unless the host it is forwarding to has 25 open to the
internet and you know the server name.
You *could* turn up smtp interface logging on your IMS for a brief period of
time. You should then start seeing relevant messages in the event logs. If
you turn up smtp protocol log, you will start to see log files in the
imcdata\log directory.
Search the internet for SMTP Reply and Error Codes, print out 100 copies and
use them as wallpaper. If anyone asks you about it, recite the codes and
meanings like Dustin Hoffman in the Rainman. This will decrease your
workload by 25%.
-Original Message-
From: Bob Peitzke [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 28, 2001 5:55 PM
To: MS-Exchange Admin Issues
Subject: Troubleshooting NDR's
Lately we've had more NDR's than usual. I don't see any relevant messages
in our E5.5/SP3 server event logs. I've been using telnet and nslookup to
try to test messaging to the destination mail servers independent of ours.
I could use some advice on using such tools or other, and on troubleshooting
NDR's in general. What tests are meaningful. etc. For instance some mail
servers hide behind smtp forwarders, and I'm not sure who to try to connect
to.
Has anyone got any helpful advice in this area?
TIA
- Bob
Bob Peitzke
Information Systems Manager
Sander A. Kessler & Associates
2850 Ocean Park Blvd., Suite 200
Santa Monica, CA, 90405-6200
[EMAIL PROTECTED]
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