External E-mail not being sent

[faza]

Hi All,

 

I have just installed and configured a new Exchange 2006 server. I have got this external dns mail.xxxx.org which I use for all our external e-mails. It forwards all external e-mail.

 

I have set up a connector through the hub transport but the e-mails are getting stuck saying unreacheable.

 

Is there any thing that i am missing that i need to do.

 

I have put a MX record in my own dns pointing to my external DNS. But i am a little confused.

 

Faza

[FN-GM]

Didn't know there was exchange 2006

 

Have you forward the correct ports and let enough time for the mx records to kick in?

[faza]

Sorry bit late in the evening

 

Where do you set the ports?

[FN-GM]

On you router, you will need to forward the appropriate ports for exchange to work.

[faza]

We do not have control of our router it is centrally controlled. But we had a Exchange Server 2003 system before so should the router alreadyt be setup and ready?

[FN-GM]

Are you using the same IP address as before?

[faza]

No its a differnet IP Address

[DMcCoy]

I assume it's similar for 2008, but on 2003 you need to configure the forwarding mail relay on the smtp connector.

 

From the mail server try: telnet mail.xxx.org 25

(type "quit" to exit). If you get a response from telnet and the relay is set correctly in the smtp section on exchange it should work.

[FN-GM]

No its a differnet IP Address

 

Do you mean internal or public?

[maniac]

No its a differnet IP Address

 

Put the server on the same IP address as the old server and I expect it will work, as long as all your other settings are correct! Your router will be configured to route SMTP traffic to a certain address, and I expect the mail server your outbound mail forwards to is setup to only receive mail from a specific address within your organisation, so as to stop open mail relay and possible abuse of the e-mail server(s).

 

Mike.

Edited August 10, 2008 by maniac