EXCHANGE2010 configuration-Internal and external network mail forwarding

E-mail is an important platform for daily Office, Communication and collaboration of enterprises.

The enterprise set up its own mail system (such as exchange2010), how to achieve with the external post Office to each other forward it?

Let's look at a concrete example

Network topology

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Describe:

Internal domain ms.com, mailbox user [email protected];

External domain tongyue.com, mailbox user [email protected];

The roles of each host are defined as follows

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Demand

1. employees can use OWA to send and receive mail while on business trip;

2. The extranet has a tongyue.com post office where the user Mary can send and receive mail ;

3. intranet users can receive mail from external Post Office (tongyue.com).

4. intranet users can send mail to external post office

Specific implementation:

1. Employees can use OWA to send and receive mail on business trip;

Because the internal-to-external network rule is NAT, the reverse NAT needs to do port mapping, where the NAT server is WIN2K3, open the Routing and Remote Access component, and select the external NIC.

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Right-click Properties

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Switch to the "Services and Ports" tab and select "Secure Web Service" to fill in the intranet CAS server IP address 10.0.0.2

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Are you sure. Then test OWA

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OWA interface, enter user name and password

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Normal access, send a test message to send and receive the normal.

2. the Extranet has a tongyue.com post office whose user Mary can send and receive mail

The extranet post office is used primarily for testing, where Windows2003 comes with a post office simulation,

Test user [email protected],

Then use the system to bring your own Outlook Express to test mail.

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External user Mary sends herself a message

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can see that [email protected] Mail is sent and received properly.

3. The user can receive the mail sent by the external Post Office (tongyue.com)

Mail forwarding requires DNS to query MX records, so in the public domain DNS server to have these 2 post Office zone database, the following is the result of Nslookup query

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Parsing is normal. Intranet Post Office parsing is 13.1.1.254, is the outside network card address, so also need to do the next 25 port mapping. Point to the hub server, which is also 10.0.0.2

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Are you sure

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Send test mail to intranet users

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Found, did not receive. Why?

Answer this question need to figure out what is accept connector? The official explanation is quoted here.

• The Receive connector represents a logical gateway through which all inbound messages can be received. Receive connectors are configured on a per-server basis, and they control how the server receives mail from the Internet, e-mail clients, and other messaging servers.

• By default, after you install the Hub Transport server role, the receiving server that is required for internal mail flow is automatically created

• Similarly, after you install the Edge Transport server role, you will automatically create a receive connector that can receive mail from the Internet and Hub Transport servers. However, you can establish end-to-end mail flow only after you use the Edge subscription process to subscribe an Edge Transport server to an Active Directory site.

• For other scenarios, such as an Internet-facing Hub Transport server or an Edge Transport server that is not using EdgeSync, you must manually configure the connector to establish end-to-end mail flow.

Additionally, two receive connectors are created by default after the Exchange installation is complete. One is the client connector and one is the default connector.

Client connectors are used by clients to access Exchange servers using the SMTP protocol, and intranet users typically use the MAPI protocol to access Exchange servers, so they are generally not configured. The default connector is used by the extranet postoffice to access the Exchange server. The outbound Post Office mail Inbound is going through the default connector. However, permissions in the default connector do not allow anonymous connections.

Now that you know why, let's configure the Accept connector properties, open server configuration-Hub Transport

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Click Accept Connector-select "Default 08server-1"

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Click Permissions Group-Tick anonymous user

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Resend a copy of the message and you can receive it.

4. users can send mail to external post office

By default, messages cannot be sent externally because there is no new send connector.

The Send connector creates a logical connection to the remote e-mail system and is responsible for outbound transport of the e-mail.

Then we create a new Send connector, organization configuration-Hub Transport-Send connector

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Click New Send connector, template select Internet

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Next

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Address space *, indicates that all messages sent to the Internet Post Office will be outbound through this Send connector, equivalent to the default route on the network

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Network Settings "Use the domain Name system to automatically send mail"

Description: If you are deploying an edge server or have a mail gateway, you can select "Deliver mail through the following smart hosts"

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Add source server, select all hub servers

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New, complete.

Before testing, you have to set up the intranet DNS forwarding function to ensure that you can navigate to the extranet Post office via DNS MX records

Send mail to external user Mary below

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Set the intranet DNS forwarding function

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Click Send

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Confirm that Mary will receive the message.

In this way, we have implemented the internal and external network user mail forwarding function.

EXCHANGE2010 configuration-Internal and external network mail forwarding