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Google Apps is now G Suite. Same service, new name. More about the name change.

Postini Transition: Step-by-step

Postini Transition to Google
Postini services have been transitioned to Google, and the Postini Help Center has been retired. For instructions related to Google and Vault, see the Google Help Center and Vault Help Center.

About the Postini Transition to Google Apps

The Postini Transition to Google Apps enables you to copy your orgs, users, and email settings from Postini to the Google Admin console. With this transition, you'll receive email security features that are comparable to your Google Message Security (GMS) features, but through the more robust Google Apps platform. Google is also taking most of the Google Message Discovery (GMD/Postini archiving) features and rebuilding comparable features into Google Vault.

As of June 15, 2015, Google will halt all mailflow through Postini systems. If you do not take immediate action, you may experience mailflow issues on or after that date. See the actions required to prepare for Postini End of Life (EOL).

Using this guide

The Postini Transition Guide will help you prepare for your service transition, initiate your service transition, and get started with Google Apps and Google Vault after your service transition is completed. For a complete list of topics and articles in the Transition Guide, see the home page. For step-by-step instructions, click the links below.

Before my transition: I haven’t been invited yet. How can I prepare?
Configure your firewall

If you route mail to an on-premise mail server -- for example, if you have non-Gmail mailboxes or delivery endpoints such as Exchange mailboxes, ticketing systems, or other on-premise systems -- you’ll need to adjust your firewall configuration prior to initiating your service transition. We recommend that you make this change immediately even if you haven’t received your transition invitation. If you do not take these steps now, your mail flow may be interrupted during your transition. For instructions, see Allow email from Google IPs to your mail server.

Configure your SPF record

If you already have an SPF record - You’ll need to update your existing SPF record to include _spf.google.com to work with Google Apps and avoid failed delivery of outgoing mail. If you need to update your existing SPF record, we recommend that you make this change immediately even if you haven’t received your transition invitation. For instructions, see Configure SPF records to work with Google Apps.

If you do not already have an SPF record - Do not create a new SPF record until after your transition is complete. Partial or incomplete SPF records may cause delivery and spam classification issues.

Change your Google Apps Directory Sync (GADS) and Directory Sync Service (DSS) settings

If you already use GADS and DSS, you'll need to modify your GADS settings, and disable GADS and DSS before your service transition begins so that GADS does not make any changes.

Do not enable or re-enable GADS until you are notified that your orgs, users, and settings have transitioned from Postini to Google Apps.

Verify ownership of your domains

If you haven’t yet verified ownership of your domains, you must complete this step before you can begin your transition. If this applies to you, you’ll receive an email from Google with details about which domains must be verified. If you fail to verify a domain, that domain will not be transitioned -- including that domain’s users and settings, as well as any archive data (if you’re a Postini GMD customer).

If you’re a Postini Classic customer -- Create the following TXT record for each of the domains you wish to have automatically transitioned:
P2A_XXXXXXX_X

For instructions, see Add TXT records to verify Postini domain ownership.

If you’re a Postini Hybrid customer -- Verify ownership of your domains by adding them to your Google Apps account. For instructions, see Add a domain or domain alias.

Learn about the different Postini customer types

The steps required to complete your transition will vary depending on the type of Postini customer you are. For descriptions, see Defining the different Postini customer types.

Learn about the Transition Console

When you are eligible to begin your transition, Google will send a Transition Invitation email to your account administrator. This email will provide instructions for how to get started, as well as a link to the Transition Console, where you can initiate your service transition by clicking Begin Transition Now.

For details, see Use the Postini Classic Transition Console and Use the Postini Hybrid Transition Console.

For most domains, the process of automatically moving your orgs, users, and settings from Postini to Google Apps will be completed within a few minutes, but it may take longer for some domains. You'll receive a confirmation email when the process is completed. The Transition Console -- which you can access using your Postini Admin Console username and password -- will also display updates so you can monitor the status of your transition.

Non-Google Apps Postini customers who use on-premise mail servers will use the Classic version of the Transition Console. Most Postini customers who use both Postini and Google Apps will use the Hybrid version of the Transition Console.

Go to the Postini Transition Resource Center

The Postini Transition Resource Center provides news and updates on the Postini Transition project, as well as FAQs on numerous topics that can help you prepare for your transition.

Make sure you have signed the Postini Transition Amendment

When you receive your formal transition notice, we will provide details about your transition, as well as links to the terms and conditions for using the services and the Postini Transition Amendment, which you can sign via online form. You will need to sign these agreements before your renewal date or your service cannot be renewed. (See How can I find the renewal date for my service agreement? in the FAQs.) Customers will receive this notice prior to their next renewal. If your account is within 30 days of renewal and you would like to request a new copy of the Transition Amendment, please click here to fill out a request form. For more information, see the Resource Center.

Confirm that your Postini admins have the correct administrative privileges

Before beginning your transition, make sure that only admins who need access to Postini have access. Assign root admin privileges to admins who are responsible for completing your transition steps, and remove privileges for admins who shouldn’t be allowed to progress the transition. Communicate the transition plan to any admins that typically should have these rights.

For instructions on changing Postini permissions, see Viewing and Editing Authorization Records in the Message Security Administration Guide.

View the Hangout On Air recordings and video tutorials

For more information about the Postini Transition project, go to the Postini Transition Resource Center to watch video tutorials and Hangout On Air presentations.

Learn about your service transition

For details about what will occur during your service transition, what settings will be transferred, and how long the process will take, see Service transition to Google Apps and Vault.

During my transition: I received my transition invitation. What do I need to do?
I use Postini only; I don’t use Google Apps

If you use only Postini and do not use Google Apps or Gmail, you are a Postini Classic customer. This means you purchased Postini message security or message discovery (archiving) for on-premise or non-Gmail mail servers.

For instructions on how to complete your transition, see Transition steps for Postini Classic customers. For a detailed description of what will occur during your service transition, what settings are transferred, and how long the process will take, see Your service transition to Google Apps.

I use both Postini and Google Apps

Postini Hybrid customers
Customers who use both Postini and Google Apps are defined as Postini Hybrid customers.

You're a Postini Hybrid customer if the following is true:

  • You're a Google Apps customer who can route mail to on-premise mail servers.
  • In addition to Google Apps, you also use Postini message security or message discovery (archiving).
  • You log in to both the Google Admin console and the Postini Admin Console with separate login credentials.

For instructions on how to complete your transition, see Transition steps for Postini Hybrid customers. For a detailed description of what will occur during your service transition, what settings are transferred, and how long the process will take, see Your service transition to Google Apps.

Postini Integrated customers
A small percentage of Postini customers are defined as Postini Integrated customers. You're a Postini Integrated customer if the following is true:

  • You're using both Postini and Google Apps but you're not using on-premise mail servers.
  • You can access both Postini and the Google Admin console with one login, and your users are automatically synchronized between the two systems.

For details, see Transition steps for Postini Integrated customers.

After my transition: I’ve completed my service transition. How can I get started?
Update your Google Apps Directory Sync (GADS) settings

If you plan to or already use GADS--After you are notified that your orgs, users, and settings have transitioned to Google Apps, you'll need to create exclusion rules to prevent GADS from deleting the Google Apps user accounts that are created during your service transition for former employees, Postini-only users, and sharded user accounts. Then enable GADS to synchronize user accounts.

If you're a GMD customer transitioning to Google Vault: Once you begin your transition, do not delete Google Apps users who have archive data you would like to retain -- either manually or via GADS during your service transition. Deleting user accounts can negatively affect your GMD data transition. You can suspend Google Apps users and apply a Vault Former Employee license without any negative effects. For instructions, see Assign Vault Former Employee licenses.

We will notify you when your GMD transition process is completed, after which time you may want to combine pre- and post-transition OU structures so that GADS manages all user accounts.

Get started with Google Apps email settings

Once you receive confirmation that your service transition is completed, we recommend that you sign in to the Google Admin console to review your email settings and to familiarize yourself with how the transferred settings appear, and to make any adjustments if necessary.

For instructions on how to perform many common tasks in the Google Admin console, and to learn how to modify specific Google Apps settings after your service transition, see Getting started with Google Apps email settings and Configuring advanced settings for Gmail.

Get started with Google Vault

See Getting started with Google Vault. This article provides guidance for using Vault after your service transition, and specifies details for performing many common tasks in Vault that are comparable to Postini archiving. Before you make any changes to your Vault configuration, read all of the instructions in this article carefully.

Final cleanup steps after your transition

To complete your transition, you’ll need to complete a few clean-up steps; for example, changing your MX records to Google Apps. For instructions, see Steps to complete your transition.

FAQs and Troubleshooting
If you have questions, or if you need troubleshooting assistance during or after your transition, see FAQs.
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