OAuth 2.0: a WordPress mailer plugin feature

OAuth 2.0 is an authentication protocol that allows users to grant third-party applications access to their data without sharing their credentials. In the context of a WordPress SMTP mailer plugin, OAuth 2.0 can be used as a more secure authentication method for SMTP servers.

To learn more about OAuth, check out our articles below:

• How to use Gmail as an SMTP server without OAuth
  Using Gmail as an SMTP server offers a convenient way to send emails from various devices and applications. Although OAuth is Google's preferred method for secure authentication, there might be situations where it is not supported or feasible. In this article, we will guide you through the process of using Gmail as an SMTP server...
• How to get a set of OAuth 2.0 credentials on Google
  In this article, we'll guide you through the process of obtaining a set of OAuth 2.0 credentials (Client ID and Client Secret) on Google using the Google API Console. These credentials are necessary when integrating Google services, such as Gmail, with your web applications. To complement the instructions provided here, we recommend watching the following...
• Gmail authentication: OAuth vs. App Passwords
  When choosing an authentication mode for Gmail, it is essential to consider the security and compatibility of your apps and devices. The two primary authentication methods for Gmail are OAuth and App Passwords. Each method has its advantages and use cases. Here's a comparison to help you decide which one is best for your needs:...

The mailer plugins below support the OAuth 2.0 feature.