I recently received an email titled "Update regarding Box support for IPv6 access." The email is from boxteam@customer.box.com. Is this a legit email?

Within the email, it states "In the meantime, we encourage you to ensure your environment is properly configured for IPv6. You can use box-test.com to test your readiness for IPv6 connectivity, where you will see your IP in IPv6 format." Is this legit? I cannot find any reference to this within the Box website.