Create mail relay in Exchange 2007 & Exchange 2010

You may want to create an open mail relay in Exchange to allow other servers to relay mail through your exchange server.

There are 2 steps:-

1. Create a new receive connector in the management console. In the “permission groups” tab, check anonymous permission and put the IP address of the server that you want to permit relay from. In the example below I have called the receive connector “Allowed Relays”

2. Open the exchange management shell and enter the command: Get-ReceiveConnector “Allowed Relays” | Add-ADPermission -User “NT AUTHORITY\ANONYMOUS LOGON” -ExtendedRights “Ms-Exch-SMTP-Accept-Any-Recipient”

Also find
Migration from SBS 2003 to SBS 2008

Migration from SBS 2003 to SBS 2008 – part 1

Migration from SBS 2003 to SBS 2008 – part 2

Migration from SBS 2003 to SBS 2008 – part 3

Please Click any of the following link