If you are the owner of AOL based email address you may see the authentication error present at the filtering of your email address. Settings update with the correct password not always work since it is require to create an app specific password for Spamdrain to connect. In order to do that please refer to the following guide:
Once the app specific password is create you can update the settings with that password and the filtering will be resumed (you may need to click on play icon if the filtering is paused).
If you need to add AOL email address please refer to the guide above and create an app specific password that will be used during email address adding as a password.
If there is an issue you are still experiencing please contact our support and we will gladly assist you.
Secure key, third party app, aol, aol.com.