Mail routing from spoke to Hub servers

what is the correct way to configure using one server as a hub server to send/receive smtp & spoke servers to route the smtp mail via hub server via NRPC ???

Subject: mail routing from spoke to Hub servers

Create a Connection document in NAB from HUB server to All_Internet_Host (just a wage name)Connection type: SMTP

Source server: HUB server name

Connect via: Direct connection

Destination server: All_Internet_Hosts

Destination domain: TheInternet

SMTP MTA relay host: relay servername

Replication task: Disabled

Routing task: Mail Routing

Route at once if: 1 messages pending

Go to NAB-Configuration-Messaging-Domains & create a Foreign SMTP Document

Domain type: Foreign SMTP Domain

Internet Domain: .

Domain name: TheInternet

After this whenever a mail is sent to internet from spoke will automativally will go to HUB server after checking connection to Internet for . from HUB server

Subject: RE: mail routing from spoke to Hub servers

Thanks Ajay for the quick response,I will test this out in this weekend.