-Original Message-
From: Phil Steele [mailto:[EMAIL PROTECTED]]
Sent: 28 June 2002 09:30
To: Exchange Discussions
Subject: Outbound Failures
I am running Exchange 5.5 SP4 on a W2K server SP1.
Since installing SP4, it appears (could be coincidence)that I
now regularly get notification of Outbound Mail Failures. The
message states that the mail could not be sent because the
'host is unknown'. I am assuming that if I had any problems
with DNS then no mail would get delivered. The Internet
connection is working perfectly. Any help would be really appreciated
Silly question perhaps but lets start with the simple stuff:
Have you sat down at the server and tried pinging or traceroute to server
addresses mentioned as problematic in your NDRs? Have you tried contacting
any that you can't reach from your server console from somewhere else? Is it
sending to the same two or three servers that generates NDRs or is it
totally random?
--
Robert Moir, MSMVP
Senior IT Systems Engineer,
Luton Sixth Form College
Our doubts are traitors -William Shakespeare, Measure for Measure
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