How does CloudMigrator migrate my email from G Suite?
When migrating email from G Suite the CloudMigrator uses the Gmail API or IMAP with OAuth authentication to read emails from users' accounts.
Gmail API or IMAP?
It is recommended to use the Gmail API (the default settings) when migrating from G Suite.
If using IMAP, the ‘All Mail’ folder must be visible via IMAP for migrations from G Suite to succeed. It is possible for users to change this setting, so this should be communicated to all users before migration.
Note: G Suite has a limit on the number of IMAP requests an account can make during 24 hours.