DNS and MX Records

[Jolly Ollie]

We run an xxx.net internal domain and an xxx.org external
domain. In my DNS I have the xxx.net MX record but I do
not have a xxx.org MX record.

We are running MS Exchange 2003 and mail is going Ok in
and out. However, we have a SMTP application that is not
generating e-mail messages as it should which are
destined for the (e-mail address removed) on our server.

Suggestions or helpful comments are very welcome!

Thanks,
Jolly Ollie

 

[Deji Akomolafe]

It's not "generating" the emails, or it's not sending them.

If the problem is with sending, you need to clarify how the SMTP server is
configured for TCP/IP. You also need to explain which server is the
destination SMTP server. I assume xxx.org is hosted by someone else, right?
So, the MX for xxx.org should be hosted by that someone else. If so, then
all your server needs to do is lookup the MX and send the mail. If the
problem is that the destination SMTP server is INTERNAL, then you may have
to do a little trick on your internal DNS server to get this to work.

Before wasting time describing the "trick" (which may not be applicable to
you anyway), let us know exactly what the real problem is.

--
Sincerely,

Dèjì Akómöláfé, MCSE MCSA MCP+I
Microsoft MVP - Directory Services
www.readymaids.com - we know IT
www.akomolafe.com
Do you now realize that Today is the Tomorrow you were worried about
Yesterday? -anon

 

[Lanwench [MVP - Exchange]]

You don't need an MX record in your internal DNS. That's for mail servers to
find other mail servers. If you have a client that needs to reach a mail
server, make sure the name of the server can be resolved via DNS, and make
sure you've set up your app/client to access/authenticate to the appropriate
SMTP server as need be.

 

[Jolly Ollie]

Thanks for the information. The Exchange 2003 Server is
internal. I thoght it was a long shot for this to be a
DNS issue since I also tried sending mail to our
(e-mail address removed) e-mail box as well and no go there. I am
going back to the application folks and take the issue up
with them.

Thanks very much for your time!

Jolly Ollie

 

[Ace Fekay [MVP]]

In

Thanks for the information. The Exchange 2003 Server is
internal. I thoght it was a long shot for this to be a
DNS issue since I also tried sending mail to our
(e-mail address removed) e-mail box as well and no go there. I am
going back to the application folks and take the issue up
with them.

Thanks very much for your time!

Jolly Ollie

Did you create the "mail" A record in the xxx.net zone?

As others have said, no need for the MX, unless you are truly hosting the
domain name on the Internet.

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.