Dual Delivery and Gmail Options

This release will introduce Dual Delivery, a new feature for Postini that enables incoming email to be delivered to two different mail hosts. If mail is successfully delivered to your primary server or spooled, it will also be delivered to your secondary server. This feature is useful for:

Migrating users from a legacy system to a new email solution: Dual Delivery can be used to migrate users from a legacy client to a new system, such as Gmail, without disrupting your mail flow. With access to both inboxes, users can familiarize themselves with the new system, and IT has time to troubleshoot migration issues before a full roll-out.

Backing up email for your users: If you are unable to access your primary mailbox for any reason or would like to give users remote email access, users can read and reply to mail on a secondary mail server. However, this will not affect data on your main server.

Piloting Google Apps or another mail server: You can let a subset of your users try Google Apps, or another mail server, without any interruption of mail flow.

Note: After you've switched over to Google Apps and have migrated your users, you can use the "Use Google Apps Gmail" feature. This directly routes all of your mail to Gmail (sets Gmail as your primary mail server). The “Use Google Apps Gmail” feature is located in the Delivery Manager settings in the Administration Console.

Dual Delivery is targeted for release on March 30 for System 8, and all other systems on March 31.

To enable Dual Delivery:

1.	Click the Inbound Servers tab in the Administration Console.

2.	Select an email server config from the pull-down list.

3.	Click the Delivery Manager link.

4.	In the Overview page, click the Edit link in the gray bar.

5.	Select the Enable Dual Delivery check box. (If selected, a message will be delivered to a dual delivery server if the message was successfully delivered to a registered user.)

6.	Select one of the following radio buttons:

Send a copy to Google Apps Gmail - Sets your dual delivery server as Google Apps Gmail.

Send a copy to this email server - Sets your dual delivery server as the MX record or IP address that you specify. Note that dual delivery servers do not support a failover server.

7.	Click Save.

For more information and instructions on Dual Delivery, see the Delivery Manager chapter of the Administration Guide on the date of the release.