Cannot send email to using SBS 2008

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I have an issue where I cannot send any email to domains from my new SBS 2008 with Exchange 2007. @msn and work fine. Ideas? Is .gov blocking anything?

Microsoft Mail Internet Headers Version 2.0
Received: from ([]) by with Microsoft SMTPSVC(6.0.3790.3959);
                 Thu, 22 Oct 2009 10:09:05 -0500
Received: from ([]) by with Microsoft SMTPSVC(6.0.3790.3959);
                 Thu, 22 Oct 2009 10:09:04 -0500
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: AicFAMER4EqXxD4p/2dsb2JhbACBMx9ZKtk9hD8E
X-IronPort-AV: E=Sophos;i="4.44,605,1249275600"; 
Received: from (HELO ([IP])
  by with ESMTP; 22 Oct 2009 10:09:04 -0500
Received: from SERVER01.domain.local ([fe80::5c1e:a75a:6c92:a739]) by
 SERVER01.domain.local ([fe80::5c1e:a75a:6c92:a739%10]) with mapi; Thu, 22
 Oct 2009 11:09:03 -0400
From: user <>
To: "" <>
Date: Thu, 22 Oct 2009 11:09:02 -0400
Subject: Test
Thread-Topic: Test
Thread-Index: AQHKUymXgo89Tb9lH0OJ0bsDSk++uw==
Message-ID: <A3FD733AC16F3941B5F5777971739136217F7385@SERVER01.sheilalee.local>
Accept-Language: en-US
Content-Language: en-US
acceptlanguage: en-US
Content-Type: multipart/alternative;
MIME-Version: 1.0
X-OriginalArrivalTime: 22 Oct 2009 15:09:04.0724 (UTC) FILETIME=[984A2140:01CA5329]
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

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Launch nslookup on mail server and check resolving mx-record for this domain. May be your Exchange can not find it.


The emails sit in the SMTP Que till they time out.

My server can see their email servers:
See attached


Would it be that I need to have a secure SMTP? Maybe thats why they are blocking it?
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Promt this in command line:
telnet 25
you will be prompted (if evr. is ok):
220 ESMTP Sendmail 8.13.8/8.13.8/rx-v647; Thu, 22 Oct 2009 1
4:43:36 -0400

MAIL FROM: (type yor fro email)
RCPT TO: (target address)
(type test message)
. (type dot and press enter)

if evr. pass - chek exchange queue (mailsubmittion service, example)

Check for the MSExchangeMailSubmission service - it must be running.
You may use "Tools" for troubleshoting problem with emails, from Exhcange management console.


So it looks like I need to setup a Recursive DNS with Verizon?

census.gor mail server cannot find the PTR record in revers DNS zone (for your external IP) i guess. You have to ask your ISP to register in DNS that one. It take some hours or days.
I had such problem once
Top Expert 2011
The problems with your domain are:
  • You have an IP Address for your MX record and not a Fully Qualified Domain Name (FQDN) e.g.,  Once you have corrected this - then your Reverse DNS entry can be checked to see if it is correct.  Currently the IP associated with your primary MX record returns a address - this should be something like
  • You have two MX records and the initial one also has a priority of Zero - which can also cause some problems with mail-flow, so please amend this to 5 as your other MX record is 10.
  • You don't have an SPF record setup - which some servers can insist that you have.  Please visit  to work out what to put and then amend your domains DNS records to add a TXT record with the output from the openspf site as the detail.

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