troubleshooting Question

How to troubleshoot exchange server connectivity issue?

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okamon asked on
ExchangeEmail ClientsEmail Protocols
8 Comments3 Solutions900 ViewsLast Modified:
user has exchange server 2003 in domain environment. Setup a user and email. The user can send out email but cannot receive any email. the NDR is
A message that you have sent could not be delivered to one or more recipients.  This is a permanent error.  The following address failed:
 <>: 550 "

I read this article My questions:
1. How does each command can help me find out the problems?
2. and to telnet, I need to find out the exchange server fqdn or ip address, but it seems I cannot just telnet as sometime the exchange server not in the same location as exchange server. How can i find out the location of exchange server?
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