How to Configure Application Server Relay trough Exchange 2007 HTS Server.

You have application server and you wish to let this server relay mails  trough your exchange 2007 server. I will show you how to set this up on exchange server and how to troubleshoot to make sure it is working or now.

• Exc07.smtp25.org=10.10.10.7 ( exchange HTS server)
• App01.smtp25.org=10.10.10.131 ( Some application server needs mail relay)

open EMC, drill down under Server Configuration, click on Hub Transport configuration

• We will work on the right pane under “receive Connectors”
• The receive connector installed on HTS server and it is
• logical gateway through which all messages are received.

• Or think it is as  “receive connectors as protocol listeners” similar to  Exchange 03 is an SMTP Virtual Server.

• Now lets create one “receive connector” and specify who can relay trough and sent messages out from this connector

On the Receive connectors , make a right click and select

• New Receive Connector

• Give it a name
• Internal_Relay ( I used this one)
• Custom ( Click Drop Down and select intended use)
• Click next

• Local Network Settings
• Specify the FQDN for the connector

Now we need to specify the application relay server IP address here.

• First remove the default

• Include the IP Address of relaying server
• In my scenario this is going to be 10.10.10.131
• Click next
• Click new

• and finish

• Now I have the connector in the Receive connector list

Now log into application server and open CMD

• Telnet mail2 25 ( hit enter)
• Helo ( hit enter)
• mail from:report@telnet25.org ( Change this to accommodate your environment), Most likely this will be the e-mail address application will try to sent mail out to the exchange server
• I receive “ 530 5.7.1 Client was not authenticated”

• we have still have problems and do little more work to get this going
• Go back to connector , click on Permissions group, select
• Anonymous users

Go back to relaying server we will perform the basic SMTP test from CMD one more time

• telnet mail2 25
• helo
• mail from:Report@Telnet25.org
• rcpt to:Report@Telnet25.org
• Data ( hit enter)
• Subject: Testing Mail Relay ( Hit enter)
• Testing Mail Relay ( this is Body)
• press dot + Enter + dot on the keyboard

• now we got 250
• open the mailbox for report@telnet25.org to verify the e-mail in the destination mailbox

Oz Casey Dedeal

MVP (Exchange)
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +

Http://smtp25.blogspot.com (Blog)

Https://telnet25.spaces.live.com (Blog)

Https://telnet25.worldpress.com (Blog)