Email Admin Settings
Configure spam protection in the email admin settings

Email Admin Settings
Within the Emails tab in the Highlight and Share settings, you can configure a few spam-protection options.
Akismet is a great spam protection tool and if you have it installed, Highlight and Share will attempt to use it for protection.
Akismet: Spam Protection for WordPress - Akismet
Akismet
Akismet is great for spam protection
Simply enable or disable the Akismet option if you would like to use the service.

Akismet Spam Protection Options
If you do not have Akismet installed or the API key for Akismet is disabled, you will see a warning indicating the status.

reCAPTCHA 3 Settings
reCAPTCHA 3 is an invisible captcha and is designed to be out of the way.

reCAPTCHA v3 | Google Developers
Google Developers
Get your reCAPTCHA 3 Keys
To enable reCAPTCHA 3, you will need a site key and a secret key. Follow the link above to get both keys.
When reCAPTCHA 3 is enabled, you will see a reCAPTCHA icon in the email modal.

reCAPTCHA 3 In the Email Modal
Last modified 9mo ago