Cannot recieve e-mail in Exchange 2010

Cannot receive e-mail in Exchange 2010
Would really really really appreciate some help in getting this resolved.

-------------------------------- INTERMEDIA ERROR

When I send a test e-mail to this domain from my Intermedia account I get this:

120853-APP3 rejected your message to the following e-mail addresses:

u3@domain.com (u3@domain.com)


120853-APP3 gave this error:
Unable to relay for u3@domain.com


Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery.








Diagnostic information for administrators:

Generating server: HUB028-VA-3.exch028.domain.local

u3@domain.com
120853-APP3 #550 5.7.1 Unable to relay for u3@domain.com ##

Original message headers:

Received: from MBX028-E1-VA-4.exch028.domain.local ([10.216.101.54]) by
 HUB028-VA-3.exch028.domain.local ([10.216.101.36]) with mapi id
 14.02.0309.002; Thu, 16 Aug 2012 06:02:38 -0700
From:
To: "u3@domain.com" <u3@domain.com>
Subject: test
Thread-Topic: test
Thread-Index: Ac17r2U+QwXl8KmQSI+9pR6hr9B5gw==
Date: Thu, 16 Aug 2012 13:02:37 +0000
Message-ID: <719A9CA5611FD24391C48E14350FB5849BE058@mbx028-e1-va-4.exch028.domain.local>
Accept-Language: en-CA, en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [174.0.131.203]
Content-Type: multipart/alternative;
      boundary="_000_719A9CA5611FD24391C48E14350FB5849BE058mbx028e1va4exch02_"
MIME-Version: 1.0

-------------------------------- Microsoft Remote Connectivity Analyzer Inbound SMTP mail flow Error



Testing inbound SMTP mail flow for domain u3@domain.com.

ExRCA failed to test inbound SMTP mail flow.

Test Steps

Attempting to retrieve DNS MX records for domain domain.com.

ExRCA wasn't able to retrieve MX records from DNS.

Tell me more about this issue and how to resolve it

Additional Details

No MX records were found in DNS for SMTP domain domain.com.
 

-------------------------------- What my GoDaddy MX Record looks like

At GoDaddy:

I have this A record:

Host        Points to                

mail         XX.XXX.XX.XXX

I have this MX Entry:

Priority         Host              Points to

0                    mail              mail.domain.com

I have this SRV Entry

Service              Protocol       Name      Priority          Weight           Port          Target

_autodiscover   _tcp              @             0                     0                    443            mail.domain.com