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Mailu

Mailu, the lightweight self-hosted Docker mail server, and how it compares to Mailcow and Stalwart.

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Self-Hosted Email in 2026: Mailcow vs Mailu vs Stalwart — Which Mail Server Should You Trust?

Self-Hosted Email in 2026: Mailcow vs Mailu vs Stalwart — Which Mail Server Should You Trust?

Self-hosted email in 2026 comes with more choices than ever. This guide compares Mailcow, Mailu, and Stalwart across security, performance, resource usage, scalability, administration, and deliverability to help you choose the right mail server for your needs.