In hook.js, you'll find a piece of code to ensure that new users' emails match certain criteria.
You'll have to deploy it as a "Pre User Registration" hook at https://manage.auth0.com/#/hooks.
Additionally, enable the "Force Email Verification" rule in https://manage.auth0.com/#/rules - otherwise, new users can sign in without confirming their email addresses first.
| /** | |
| @param {object} user - The user being created | |
| @param {string} user.tenant - Auth0 tenant name | |
| @param {string} user.username - user name | |
| @param {string} user.password - user's password | |
| @param {string} user.email - email | |
| @param {boolean} user.emailVerified - is e-mail verified? | |
| @param {string} user.phoneNumber - phone number | |
| @param {boolean} user.phoneNumberVerified - is phone number verified? | |
| @param {object} context - Auth0 connection and other context info | |
| @param {string} context.requestLanguage - language of the client agent | |
| @param {object} context.connection - information about the Auth0 connection | |
| @param {object} context.connection.id - connection id | |
| @param {object} context.connection.name - connection name | |
| @param {object} context.connection.tenant - connection tenant | |
| @param {object} context.webtask - webtask context | |
| @param {function} cb - function (error, response) | |
| */ | |
| module.exports = function (user, context, cb) { | |
| var response = {}; | |
| // Add user or app metadata to the newly created user | |
| // response.user = { | |
| // user_metadata: { foo: 'bar' }, | |
| // app_metadata: { vip: true, score: 7 } | |
| // }; | |
| var domains=[ '@gmail.com', '@outlook.com', '@anywhere.de' ]; | |
| var okDomain = false; | |
| for (i=0;i<domains.length;i++) { | |
| if (user.email.indexOf(domains[i]) > -1) { | |
| okDomain=domains[i]; | |
| i=domains.length; | |
| } | |
| } | |
| if ((user.emailVerified) || (!user.emailVerified && okDomain)) { | |
| response.user = user; | |
| return cb(null, response); | |
| } else { | |
| const error = new Error("E-Mail-Address did not match requirements."); | |
| error.statusCode = 400; | |
| return cb(error); | |
| } | |
| }; |