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is there any error in the returned message? &nbsp;What is it?<br />
<br />
If you are relaying your email then is the relay in your LAN or is it an external relay?
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is there any error in the returned message?  What is it?

If you are relaying your email then is the relay in your LAN or is it an external relay?

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I didn’t get an error but I ran a email address test against the domain and I go this back<br />
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220 (my email Server).testmedia.com ESMTP IceWarp 10.3.5; Mon, 26 Mar 2012 13:42:06 -0400 <br />
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•OK - 201.245.32.3 resolves to 201.245.32.3.ip.(Provider)<wbr /><br />
•Warning - Reverse DNS does not match SMTP Banner<br />
•Does not support TLS.<br />
•0 seconds - Good on Connection time<br />
<br />
The relay is on my LAN but on a different subnet, al so I have tried to send to my internal email
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I didn’t get an error but I ran a email address test against the domain and I go this back

220 (my email Server).testmedia.com ESMTP IceWarp 10.3.5; Mon, 26 Mar 2012 13:42:06 -0400

•OK - 201.245.32.3 resolves to 201.245.32.3.ip.(Provider)
•Warning - Reverse DNS does not match SMTP Banner
•Does not support TLS.
•0 seconds - Good on Connection time

The relay is on my LAN but on a different subnet, al so I have tried to send to my internal email

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I have just set up an SMTP Relay but I think I am having some problems with DNS Reverse Lookups.I can send emails to accounts like gmail or yahoo but when I try to send to more of a private company site the email comes back, Is there a way for me to test this.<br />
<br />
Thanks
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I have just set up an SMTP Relay but I think I am having some problems with DNS Reverse Lookups.I can send emails to accounts like gmail or yahoo but when I try to send to more of a private company site the email comes back, Is there a way for me to test this.

Thanks

DNS Reverse Lookups

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.