External E-mail not being sent

faza · 09-08-2008, 11:14 PM

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 · 09-08-2008, 11:18 PM

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 · 10-08-2008, 11:06 AM

Sorry bit late in the evening

Where do you set the ports?

FN-GM · 10-08-2008, 11:33 AM

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

faza · 10-08-2008, 12:35 PM

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 · 10-08-2008, 12:36 PM

Are you using the same IP address as before?

faza · 10-08-2008, 12:56 PM

No its a differnet IP Address

DMcCoy · 10-08-2008, 01:18 PM

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 · 10-08-2008, 01:41 PM

Quote:

Originally Posted by faza

No its a differnet IP Address

Do you mean internal or public?

maniac · 10-08-2008, 02:08 PM

Quote:

Originally Posted by faza

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.

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09-08-2008, 11:14 PM	#1
faza Join Date: Dec 2005 Posts: 332 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0	External E-mail not being sent 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

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External E-mail not being sent

09-08-2008, 11:18 PM	#2
FN-GM Join Date: Jun 2007 Location: Rochdale, Lancashire Posts: 4,811 Thanks: 156 Thanked 156 Times in 150 Posts Rep Power: 37	Didn't know there was exchange 2006 Have you forward the correct ports and let enough time for the mx records to kick in?

10-08-2008, 11:06 AM	#3
faza Join Date: Dec 2005 Posts: 332 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0	Sorry bit late in the evening Where do you set the ports?

10-08-2008, 11:33 AM	#4
FN-GM Join Date: Jun 2007 Location: Rochdale, Lancashire Posts: 4,811 Thanks: 156 Thanked 156 Times in 150 Posts Rep Power: 37	On you router, you will need to forward the appropriate ports for exchange to work.

10-08-2008, 12:35 PM	#5
faza Join Date: Dec 2005 Posts: 332 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0	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?

10-08-2008, 12:36 PM	#6
FN-GM Join Date: Jun 2007 Location: Rochdale, Lancashire Posts: 4,811 Thanks: 156 Thanked 156 Times in 150 Posts Rep Power: 37	Are you using the same IP address as before?

10-08-2008, 12:56 PM	#7
faza Join Date: Dec 2005 Posts: 332 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0	No its a differnet IP Address

10-08-2008, 01:18 PM	#8
DMcCoy Join Date: Oct 2005 Location: Isle of Wight Posts: 1,904 Thanks: 2 Thanked 108 Times in 100 Posts Rep Power: 29	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.

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