EX

Exim

Flexible and widely deployed mail transfer agent

Mail Servers ★ 786 stars Hard setup GPL-2.0

Exim is a highly configurable mail transfer agent used to route and deliver email on Unix systems. It powers a large share of the internet's mail servers and supports extensive policy and ACL controls.

Key features

  • Powerful routing rules
  • ACL-based policy
  • Wide platform support
  • Mature codebase

Pros & cons

Strengths

  • Extremely flexible
  • Proven at scale

Trade-offs

  • Complex configuration
  • Easy to misconfigure

Exim replaces

Compare Exim

23 head-to-head comparisons.

Similar mail servers apps