These instructions are for users that had an existing Mattermost account but did not setup up their P1 SSO account yet. If you're a brand new user and do not have a Mattermost account, click here for instructions on setting up a new account.
Access to your MFA app (e.g. Google Authenticator, Authy, etc.) and the government email address associated with your Mattermost account is required. This process must be done from a web browser on a computer. Do not use Internet Explorer.