How to configure multi domains on one Exchange 2007

[baby_koko]

I am having 4 server:
1. Domain Controller (windows 200
2. Forfront Server "ISA Server 2006"
3. Exchange server 2007.
4. Application server.
I am using microsoft essential business server package.
All I am in:
I am hosting my emails on network solution, and have alot of domains about 12 domain on network solution, and Emails on it.
I am now about to migrate the Emails to my exchange server.
What i want to know:
How to configure my DNS , Forefront , Exchange to:
1. Host my Emails for 12 Domain.
2. configure my share point services to be online.
Could you please provide me with the details of the details about such scanarios

[busbar]

Hi Koko
first you need to add the correct mx records to each domain that you need, keep in mind that all of them will point to the same IP address.
in the exchange server you will need to add all of those domains as accepted domains and make sure to tick that you are authoritative organization for receiving mails for those domains.
creat an email policy to add the correct email address to the users.

that is it.

[baby_koko]

busbar,

First of all thank you for fast reply.

but i need some clarification if you do not mind:

if i have a dns forward lookup zone for abc.com 1st domain

where should i but the mx record for the rest of other domains def.com and xyz.com

should i create a new forward look up zone for each domain, or just create mx record inside the first and default forward lookup zone.

Please explain...

Thank you

[busbar]

if you have it at your own DNS server or have it hosted externally at network soultions
anyway each domain should have his own MX record in his own zone

[baby_koko]

busbar,

Here is the situation:

I have 12 Domain names that hosted on Network solutions and Emails on there.

I have installed my domain controller with domain name other than the 12 that on network solution.

your instructions are to create forward lookup zone for each Domain on my Domain controller, which mean that my domain controller will have 12 forward lookup zone. its ok

next step is to configure network solution to point to my ISA server for these domains.

is that right.

if there is any other steps

please provide.

[busbar]

KOKO
you miss interpreted my statement, what I mean that you have to create the DNS records on your external DNS zone on your external DNS server, which will be done by logging to network solution by using your account, and then adding the mx records to each domain by using the wizard.

at the domain controllers you don't need to add the MX records, or do anything as long as you are using external DNS servers and NS servers at the network solution points to external DNS servers.

the MX record will point to host record, the host record will point to an IP which is the external IP of your ISA server. which is used to publish or NAT your email server for SMTP, HTTP and HTTPS connections

[baby_koko]

busbar,

Now i got your instruction, which help me alot.

Thank you for information

realy approciated.