We need the IMAP to be enabled at the user level to get the mails from the user account. Hence, a user should do this validation to ensure his GMail settings are proper for us to migrate.

Login to your GMail and check the following steps given below for validation.

1. Click on the Gear Icon  and go to ‘Settings’

2. Then, go to ‘Forwarding and POP/IMAP’ tab, and in the ‘IMAP Access’ make sure that IMAP is enabled.

3. Then go to ‘Labels’ tab and make sure the ‘Show in IMAP’ checkbox is checked, for all the System labels listed.