SMTP OAuth Support for Joomla CMS

[anibalsanchez]

Is your feature request related to a problem? Please describe.

Google is phasing out SMTP Plain authentication for Gmail and other services starting in autumn 2024 in favor of SMTP OAuth. This change requires third-party apps to use OAuth, enhancing security and discontinuing less secure access methods.

Describe the solution you'd like

Integrate SMTP OAuth support in Joomla CMS to maintain email functionality for users relying on Gmail. Add configuration options for SMTP OAuth in the Global Configuration section, enabling secure connections with Gmail servers via OAuth.

To accommodate this transition and ensure seamless email functionality for Joomla CMS users who rely on Gmail, the necessary configuration options must be added in the Global Configuration section under Mail > SMTP Methods.

The proposed solution involves including settings for configuring SMTP OAuth, explicitly utilizing the XOAUTH2 mechanism.

The new feature will align Joomla CMS with industry email security standards, provide a smooth transition to OAuth authentication, and improve overall security.

Additional context

• Google's transition guide: Transition from less secure apps to OAuth
• Details on OAuth 2.0: OAuth 2.0 Mechanism

[jeckodevelopment]

Please keep in mind that this is related not only to gmail.com email accounts but all the corporate/schools/governments which use Google Workspace for the email management. So implementing this feature would be crucial for those use cases.

Thanks :)