Google Outbound Services Configuration Guide - Manual (Page 15)

16 Outbound Services Configuration Guide
3. Click the Save button.
When you click Save, the Administration Console will test your reinjection
host to confirm the private relay is set up properly. If your mail server has not
been set up to allow Outbound Services to act as a private relay, see “Set Up
Reinjection” on page 14 for information about how to set up a private relay.
4. If you have more than one outbound server IP range, add additional records.
Go back to step 2 and register each IP range separately using the same
instructions.
After you have successfully added your IP address, you can set up a smarthost
(or external DNS) safely.
Increase Server Timeouts
Extend the timeout on your outbound server for delivering email. In most cases, a
15-minute timeout is ideal. This provides Outbound with some flexibility to handle
slow receiving mail servers.
Timeout settings vary by mail server type. For some servers, it is not necessary to
change timeout. For step-by-step instructions for configuring timeouts, see the
appropriate chapter in this guide for your mail server.
Option 1: Set Up Private Outbound DNS
Private Outbound DNS Service provides a simple, reliable way to route outbound
mail to the message security service. It is the easiest way to route outbound mail.
Using a smarthost can cause queued messages and mail delays for many mail
servers, especially Microsoft Exchange mail servers.
Private Outbound DNS is generally recommended over using smarthost.
Private Outbound DNS works with all common mail servers. The documentation
provides instructions verified for Lotus Domino 6 and 8.5. For other version of
Lotus Domino, please refer to the product documentation on DNS configuration.
Private Outbound DNS Service is designed to ease setup and prevent queueing
delays, and is recommended for any administrator using a supported mail server.
Supported Servers
Private Outbound DNS Service works with all common mail servers. Configuration
steps are provided for Microsoft Exchange 2003 and 2007/2010, and IBM Lotus
Domino. Other mail servers will be documented in the future. For other mail
servers, please refer to your mail server product documentation on DNS
configuration.