OAuth2 for SMTP

WHMCS includes OAuth authentication support for Google email in version 8.0 and later.

What Is OAuth?

OAuth is a technology that authorizes apps or services like WHMCS to access another service, such as a Google email account. It's more secure than traditional username-and-password authentication.

In addition to its security benefits, some mail providers require OAuth or have announced a requirement for it in the future.

How Do I Set Up OAuth?

To use OAuth for Google email with WHMCS, you will need to both configure Google as your mail service provider and create an app for it in the Google Cloud console.

You can set Google as your Service Provider at Configuration () > System Settings > General Settings > Mail.

For instructions to set up OAuth for Google email and the required Google app, see Setting Up Google As Your Mail Service Provider.