← Back to Glossary

Email SPAM filter


What is an Email SPAM filter

Email services use inbound and outbound email filters to prevent spam. These spam filters have some metrics and algorithms that assign a numerical score after the filtering process that reflects the probability of the email being spam.

Type of email filters

There are three types of email filters:

  • Gateway – typically used by large business and includes Barracuda and Mimecast as examples
  • Hosted – typically used in businesses that have developed their own method to detect spam based on sender reputation and content and includes Cloudmark as an example
  • Desktop – configured by the user and includes Outlook with SmartScreen as an example

Want to receive more great content like this for free?

Subscribe to our newsletter to get best practices, recommendations, and tips for digital marketers