
MIMEDefang is an open-source email filtering and processing tool designed to enhance email security by scanning and modifying email messages. It primarily focuses on detecting and neutralizing threats such as viruses, spam, and phishing attempts. MIMEDefang operates as a filter that integrates with mail transfer agents, allowing for customizable handling of email content, including the ability to block or modify attachments and URLs. The tool is widely used in various organizations to improve email safety and compliance with security policies.