The company is announcing the release of two-factor authentication (2FA) for its Postmark service, which adds an extra layer of security to user accounts. The feature can be set up using an authenticator app or by providing a mobile phone number via SMS. To enable 2FA, users must log in to their account, click on their profile, and select the "Enable" option next to the two-factor authentication heading. Once set up, users will receive an email confirmation and are encouraged to download backup codes for safekeeping, as losing access to these codes can be a hassle if forgotten or lost. The feature is now available for Postmark users to use.