GSMME FAQ

No. There's a single location for configuration files. If you run multiple instances of GSMME on a single client, those instances overwrite each other's configuration files. If you want to increase the number of users migrated by a client machine, increase the number of users processed. See the GSMME Administration Guide. 

You can, but it isn't recommended. If the client machine can run multiple virtual machines, then we recommend that you take advantage of that machine. Run one instance of the client and increase the number of users that are processed simultaneously.

No. Each instance has to reference a unique list of users. If you reference the same list of users, the users' data becomes corrupt.

GSMME uses MAPI. See How does a GSMME migration work. 

No. You only need to open HTTPS and ensure that Google IP addresses aren't blocked. 

GSMME follows the proxy configuration defined in Microsoft^® Internet Explorer^® and uses those settings for all network connections to Google. Authenticated proxies aren't supported by GSMME.

Although GSMME supports proxy connections, you might need to enable a direct connection to make sure issues aren't caused by the proxy server. Because the proxy configuration depends on your local setup, Google Cloud Support won't be able to assist you with this configuration. Contact your network administrator if you encounter any proxy issues.

Yes. Create all user accounts in G Suite before running a migration. 

See Migrate data from Exchange using GSMME or Migrate mail from Google Accounts or IMAP servers.

No. You don't need to change your MX records.

No. Only include usernames. See Create a control file.

Yes. See Create a control file.

If the file meets the format requirements, you can use an automated CSV file. See Create a control file. 

Yes. See Authorize GSMME for your domain. 

No. GSMME checks the data you have specified for migration to estimate migration time.

Other than having their email, contact, and calendar data available in G Suite rather than your legacy server, your users aren't impacted by a migration.

Yes. Use the command line version of GSMME and run it as a Windows scheduled task. See Run GSMME from the command line. 

Yes.

Yes. You can run PST migrations using the GSMME desktop interface or the command line. See Migrate data from PST files. 

Yes. See Use GSMME to migrate mail from Google Accounts or IMAP servers.

Yes. GSMME is designed to migrate data for multiple users from an Exchange server to G Suite. It's implemented from the server side. G Suite Migration for Microsoft Outlook migrates data for only a single user. It's implemented from the client side.

If you migrate data from the server side and the client side, users could end up with duplicate data.

No. GSMME is designed to allow only one migration at a time to a specific user.

We don't recommend having multiple concurrent API requests migrating data into single account.

Yes. See the "Test" section in the Deployment chapter of the GSMME Administration Guide.

Yes. You can use G Suite Sync for Microsoft Outlook (GSSMO) for this purpose.

Yes. See the GSSMO Help Center. 

Yes. After you migrate your data and set up your mail flow to G Suite, you can stop using your Exchange server.

No. GSMME is designed to migrate data from Exchange to G Suite. It isn't designed for synchronization. 

Yes. When they open the G Suite Migration for Microsoft Outlook tool, they’ll create a new profile that points their Outlook account to Gmail. No other configuration is necessary.

Yes. See Read Gmail messages on other email clients using IMAP.

Yes, but it isn't a supported client. See Read Gmail messages on other email clients using IMAP.

No. You can use a third-party gateway for email delivery.

No. 

No, but administrators can. See "Viewing migration reports" in the GSMME Administration Guide.

Yes. The archived messages must be moved to Exchange and then migrated.

Yes. In Gmail, the corresponding labels are separated by a slash character to indicate the folder hierarchy.

If you choose the Migrate all data option, then the message is migrated again. It's displayed in Gmail with a new label that corresponds to the new Exchange folder.

No. Any flags on an Exchange message are mapped as a single star in Gmail.

No, but your users can create new rules in Gmail. See Create rules to filter your emails. 

Yes. The limit for a message plus any attachments is 25 MB.

No.

No. After data is migrated to G Suite, you can use Gmail or Outlook. You can use GSMME to migrate data for multiple users directly from your Exchange server to G Suite. Or, you can let individual users migrate Exchange data and local PST files with G Suite Migration for Microsoft Outlook (GSMMO).

Yes. Outlook can automatically send read receipts for the synchronized messages, which results in unnecessary non-delivery reports. Disabling read receipts in Outlook will prevent read receipts being sent automatically. 

Yes. Users can continue to work in Outlook when an Internet connection is unavailable. Data is synced between Outlook and G Suite when the internet connection is restored.

Yes. You can use Google Vault, which includes email archiving.

Yes.

Yes.

No.

No. You need to recreate those in G Suite.

No. You can use Google Cloud Directory Sync or GAL Generator, which is available with G Suite Sync for Microsoft Outlook (GSSMO).

The addresses should appear in Gmail when a contact name or email is entered in the To, Cc, or Bcc fields. 

No. You can use Google Cloud Directory Sync to migrate mailing lists to Google Groups.

If you have administrator rights to the mailboxes on your hosted Exchange server, you can use the "Outlook Profile" option in GSMME to migrate data. See the GSMME Administration Guide for details.

No, but you can set up delivery so that messages are sent to G Suite and Exchange.

Yes. You can use Google Groups and allow users to send messages to a group. You can also create calendars to share with a group.

Maybe. You can route incoming messages to Gmail or another external server based on user settings. Then, you can use Calendar Interop to share free and busy information between Exchange and G Suite. Consult with your deployment specialist to find out if this is the best approach for your organization.

Possibly. If you want to archive existing messages, contact your G Suite sales representative to inquire about that service.

No. We have successfully tested conversions with up to 226 characters.

No. Empty folders aren't migrated. And, the corresponding labels aren't created.

Yes. The corresponding labels in Gmail indicate the folder hierarchy by inserting slash characters in the label names.

If you choose the Migrate all data option, then the message is migrated again. It's displayed in Gmail with a new label that corresponds to the new Exchange folder.