How can I migrate Mailbird multiple accounts mailboxes to Gmail account? If you are also searching for a solution to this query, then use Mailbird to Gmail Migration Tool. It’s a simple to use application that automatically detects Mailbird folders from its default store location. Tool also supports batch option to export Mailbird multiple accounts mailboxes to Gmail account in single processing. Using its numerous advance filters users can also select required emails that they want to move to Gmail account. Download free demo edition of the software and learn how to move Mailbird multiple accounts mailboxes to Gmail, but free demo tool is restricted to move only first 25 emails from each Mailbird folder. To export Mailbird multiple accounts mailboxes to Gmail without any restrictions, you need to purchase its licensed edition.