PostMTA vs Postfix: Why Commercial MTA Wins for Business

Postfix is free and works for basic email sending. But for high-volume business email, PostMTA wins: native DKIM signing without external tools, built-in bounce classification, multi-tenant architecture for agencies, real-time analytics dashboard, and commercial support. Postfix requires piecing together SpamAssassin, OpenDKIM, and multiple config files. PostMTA is all-in-one. https://postmta.com