cannor recieve external email

[johncan20]

hi,

i have a new domain liveacademy.org and i cannot recieve external email on it. It is set up, i far as i can tell in the same way as liveacademy.co.uk which works fine. have i missed something in exchange, do i need to add that domain in somewhere?

the DNS seems fine and resolves to the correct IP.

any ideas would be great.

thanks

John

 

[WhoKilledKenny]

DNS looks good and I was able to telnet to your SMTP server and all looks good on that end. Did you create smtp address for the user you are testing, username@liveacademy.org?
The Default Virtual SMTP server will manage all of you Internet connections. If you want to control different setting for each email domain then you would create an additional virtual server and then configure an SMTP connector to use the virtual server as a bridgehead server. This is done through the address space tab on the SMTP connector properties.

I don't like to hang my exchange server out on the Internet so here is a suggestion that most companies use. Create an SMTP server (for example and IIS Server running SMTP). Hang it out on your DMZ and use it as a smart host to accept mail for your two email domains and forward incomming messages to you exchange server, do the same thing for outgoing messages.

hope this gives you some ideas...

 

[johncan20]

hi,

yeah i have the user set up but get a bounce back

enquiries@liveacademy.org

i only have one SMTP server - do i need to activate it in there somehow?

John

 

[johncan20]

this is the bounce back i get

217.207.88.146 does not like recipient.
Remote host said: 550 5.7.1 Unable to relay for launch@liveacademy.org
Giving up on 217.207.88.146.


John

 

[WhoKilledKenny]

I just got the bounce back as well...
Are you guys using a separate SMTP server on the Internet (a server other than one of you Exchange servers and are you managing it or is an ISP)?

 

[johncan20]

well we have an SMTP feed from easynet.

perhaps its that, ill ask them,

thanks


John

 

[johncan20]

spoke to easynet and they said its an error coming from our server not there SMTP feedm they said it was "too locked down".

but there is nowhere in exchange i specify - use this domain - is there?

thanks

John

 

[WhoKilledKenny]

If is is a stand alone smtp server you will have to configure it to accept mail for the domain.

If it is IIS do the following:
1. Lanuch IIS Manager
2. Go to Default SMTP Virtual Server -> domains
3. Right click domains and add new domain
4. In properties of your new domain click Allow incoming mail to be relayed to this domain.
5. Forward all email to smart host.
6. Enter the IP Address of your exchange bridgehead server. Make sure the IP address is encapsulated within brackets. Eg. [10.0.0.1]

 

[johncan20]

hi,

its not a standalone SMTP it goes straight to the exchange server.

so no SMTP in IIS on that, anywhere else i might need to specify in exchange?

thanks

John

 

[WhoKilledKenny]

scratch my last response, since your SMTP is being hosted.
Look at your SMTP Connector in Exchange System Manager. Administrative Groups -> org -> routing groups -> Fist routing group (or whatever name it was changed to) -> connectors -> SMTP Connector. Get properties, go to Address Space tab - what do you see?

 

[johncan20]

it says type SMTP addess * and cost 1.

is there a limit to the domains on exchange standard? i only have about 5.

thnaks

John

 

[WhoKilledKenny]

Not that I am aware of...
I'm thinking the new domain needs to be configured on your hosted SMTP server.
Check one other thing:
Form Exhcnage System mangare go to Administrative groups -> org -> servers -> servername -> protocols -> SMTP -> properties of Default SMTP Virtual Server -> Access Tab -> Relay button. What do you see there? is the hosted SMTP server able to relay. It should since you are sending and receiving from your other email domain.

 

[johncan20]

it says only the list below and then has a list of internal IP address/subnets that mail us sent from.

the guy at the ISP said the refusal was coming from our server.

John

 

[WhoKilledKenny]

Is one of the addresses the interface to the hosted SMTP Server?

 

[johncan20]

it has our entire internal subnet on it so it includes the default gateway.

is that what you mean?

thanks

 

[WhoKilledKenny]

If you look at your test users AD account is there any delivery restictions on the Account? From the AD Account go to Exchange General tab -> Delivery Restictions button.

 

[johncan20]

no restrictions at all.

John

 

[WhoKilledKenny]

John,
I don't see any configuration on your side that would block relay. I could be missing something, hopefully someone else will chim in. I still believe this issue is on the hosted SMTP server. With the configs we have gone through it would not make sense why Exchange is receiving external email from liveacademy.co.uk and not .org.

 

[WhoKilledKenny]

John,
I was able to create the problem in test.
From my external SMTP server I turned of relay to one of my test email domains. When using the RCPT TO: command I am getting Unable to relay for testdomain@domain.com.

This just means that I am more convinced that this issue is the hosted SMPT server. Verify with them that the are relaying any requests for liveacademy.org to your smarthost (your Exchange Bridgehead server).