# MIMEDefang Reviews
**Vendor:** MIMEDefang  
**Category:** [Email Anti-spam Software](https://www.g2.com/categories/email-anti-spam)
## About MIMEDefang
MIMEDefang is an e-mail filtering tool that works with the Sendmail "Milter" library. MIMEDefang lets you express your filtering policies in Perl rather than C, making it quick and easy to filter or manipulate your mail. MIMEDefang is mature software: The first version was released in 2000. It's also in use in thousands of installations. It remains under active development. MIMEDefang is free software: It's released under the terms of the GNU General Public License. It runs under Linux, FreeBSD, Solaris and most other UNIX or UNIX-like systems.






- [View MIMEDefang pricing details and edition comparison](https://www.g2.com/products/mimedefang/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-09+19%3A10%3A29+-0500&secure%5Bsession_id%5D=e6a00f1f-cdbb-4bdb-9bac-2e2342507281&secure%5Btoken%5D=37a1b7b8de7ef06642250d8f8ed1f5f18b5845fdc575f3f49bd028115c2819a7&format=llm_user)

## MIMEDefang Features
**Agentic AI - Email Anti-spam Features**
- Autonomous Task Execution
- Proactive Assistance

## Top MIMEDefang Alternatives
  - [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) - 4.6/5.0 (572 reviews)
  - [Paubox](https://www.g2.com/products/paubox/reviews) - 4.9/5.0 (568 reviews)
  - [Check Point Harmony Email & Collaboration](https://www.g2.com/products/check-point-harmony-email-collaboration/reviews) - 4.6/5.0 (464 reviews)