@jaseelpv said in Regarding mail functionality:
Failed to authenticate on SMTP server with username "[email protected]" using 3 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code "534", with message "534-5.7.9 Application-specific password required
Log in to your Gmail account through a web browser and enable access through less secure apps . Less secure apps can make your account more vulnerable, Google will automatically turn this setting off if it's not being used. However, bypass this security setting with a configuration tweak within your Google Email Account .
To do so, first head over to https://accounts.google.com/ → Security → Enable Less Secure Apps
Enabling access for "less secure apps" means that the client/app doesn't use OAuth 2.0 . OAuth 2.0 is the industry-standard protocol for authorization. When you sign in with OAuth 2.0, you sign in to Google's system directly. In OAuth 2.0 , you authenticate directly to Gmail with your credentials and authorize an app to do certain things. The third-party app only sees an authorization token provided by Google as proof that you authenticated correctly and agreed to authorize that app.
