Email not getting through to us, why?

[hayabusaukuk]

Hi here is a bounceback that happens when people try and email our domain, any idea, anyone?

to the following addresses:

<davidr@ParetoLaw.co.uk> (mail1.Law.co.uk: 554
mail1.law.co.uk)
Reporting-MTA: dns; colyer.co.uk
Arrival-Date: Thu, 22 Nov 2007 12:43:56 +0000

Original-Recipient: davidr@Law.co.uk
Final-Recipient: rfc822;davidr@Law.co.uk
Action: failed
Status: 5.4.0
Remote-MTA: mail1.Law.co.uk
Diagnostic-Code: SMTP; 554 mail1.law.co.uk
Received: from 192.168.0.155 ([192.168.0.155])
by yer.co.uk (Kerio MailServer 6.4.0)
for davidr@Law.co.uk;
Thu, 22 Nov 2007 12:43:56 +0000
User-Agent: Microsoft-Entourage/11.3.6.070618
Date: Thu, 22 Nov 2007 12:43:55 +0000
Subject: Re: PLaw
From: Nigel Southey <n.southey@yer.co.uk>
To: David Roebuck <davidr@Law.co.uk>
Message-ID: <C36B2A0B.13329%n.southey@colyer.co.uk>
Thread-Topic: Law
Thread-Index: AcgtBSNRrTmaBuSXS5ydu35InFZj5AAADRp0
In-Reply-To: <B4B4E19F08CDEA4FA0B44E03A3A3D4F001B111F8@plex01.Pareto.int>
Mime-version: 1.0
Content-type: multipart/alternative;
boundary="B_3278580235_33832390"

This is getting so frustrating, i cant work it out, help
!!!!

 

[Marcs41]

From MS:
Possible Causes:• An authoritative host was not found in DNS.
• The smarthost entry is incorrect.
• FQDN name in HOSTS file. This issue was fixed in Windows 2000 Service Pack 3 (SP3).
• There was a DNS failure or you constructed an invalid IP address for your smarthost. *
• SMTP VS does not have a valid FQDN, or your SMTP VS FQDN lookup failed.
• A contact's SMTP domain does not resolve to any SMTP address spaces.
Troubleshooting: Use Nslookup to check the DNS. Verify that the IP address is in IPv4 literal format. Verify that there is a valid DNS entry for the server or computer name in question. If you are relying on the FQDN in HOSTS file, ignore it and update the entry in Exchange System Manager with valid IP address or correct name.

Marc
_{If 'something' 'somewhere' gives 'some' error, expect random guesses or no replies at all.
Free Tip: The F1 Key does NOT destroy your PC!}