moving SMTP connector in Exch2003


I have installed a new Exchange server and want to remove my first Exch2003 server. In total there are 3 servers.

What should I do with the SMTP connector? KB  article says that I have to recreate any SMTP connector that is hosted in the server to be removed. However, I can not find how to determine which server hosts the connector.  What I can see in the ESM is that the SMTP connector is using all three servers as local bridgheads.

I need to make sure that after removing the first exchange server, mail will be still flowing.

Who is Participating?
Remove this server in smtp connector from local bridgehead and check routing group master:

Designate another server to be the routing group master
If this server is the routing group master, you must designate another server to be the routing group master. To do this, follow these steps:1. On the Exchange 2003 computer that you want to designate as the routing group master, start Exchange System Manager.
2. If the Display administrative groups check box is selected, expand Administrative Groups, expand First Administrative Group (where First Administrative Group is the name of your administrative group), expand Routing Groups, and then expand First Routing Group (where First Routing Group is the name of the routing group where you want to change the routing group master).

Note To display administrative groups, right-click First Organization (where First Organization is the name of your organization), click Properties, click to select the Display administrative groups check box, click OK two times, and then restart Exchange System Manager.
3. Click Members, right-click the server in the right pane that you want to make the routing group master, and then click Set as Master.

Only this needs to be done.


The first Exchange Server 2003 computer that is installed in an administrative group holds certain important roles. For example, the first server hosts the Offline Address Book folder, the Schedule+ Free Busy folder, the Events Root folder, and other folders. Therefore, you must use caution when you remove this server from the administrative group that it belongs to.

1.Replicate all public folders to another server
2.Rehome the Offline Address Book folder
3.Change the server that is responsible for generating the Offline Address List
4.Rehome the Schedule+ Free Busy folder
5.Rehome the Organization Forms folder
6.Rehome the Recipient Update Service (RUS)
7.Designate another server to be the routing group master
8.Creating another Site Replication Service (SRS) instance
9.Rehome connectors to another server
10.Move mailboxes to another server
11.Remove the first Exchange Server 2003 computer


Please refer this link:

What you have to figure out is which server is your incoming email coming to? There are probably two ways to figure this out, first check your firewall configuration. Second, to look at the email headers from an external email (in outlook, open the email and go to view options). Just make sure that you move the incoming email server to the correct one, and you will resolve your issue. In exchange 2003 every server has an smtp connector, that is how all server communicate and pass messages.

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juraganAuthor Commented:
Hi Ashish,

Thanks for the reply. I actually have read that KB article, and I think I haven't fully understand the point #9 "Rehome connectors to another server". Could you please elaborate more on it?

juraganAuthor Commented:
Hi amaheshwari,

Actually I have done those, remove it from local bridgehead and change the RG master, then I stopped all the Ms Exchange services to see whether it works. However, I still see that after ~ 2 hours there are still a lot of mail queue in this server while the queue on the new server is almost empty.

What did I miss?

Have you tried sending external mails when your First exchange services are stopped.If it goes fine then only you will be sure that your SMTP connector is working fine on new server.

Or else try to track message and see through which server mails are going out.

juraganAuthor Commented:
Hi amaheshwari,

The e-mail is working even when the first Exchange server was shut down. So I guess the SMTP connector is working fine on the new server.

I guess changing the routing group master while take a while to work, because now I have noticed that the Queue in the First Exchange server is always 0.

Thanks All!
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