If you're receiving spam from your web site's contact form, it's likely that you don't have a strong CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) in place to prevent automated spam from being posted through your contact form.
We recommend that you have your web developer integrate Google's reCAPTCHA v3 into your contact form. If you're using a content management system like WordPress or Joomla, you may want to add one of these modules to your site:
If you're using a custom PHP script for your contact form, please refer to PHP Contact Form with Google reCAPTCHA.