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AtMail Open vs Posteo

A side-by-side look at AtMail Open and Posteo. For an in-depth review of either product, follow the links below.

AtMail Open

AtMail Open

Office & Productivity

AtMail Open is an open source email server software designed for high delivery performance, security, and reliability. It is based on open standards and is a scalable on-prem email platform for SMBs.

emailserveropen-source
Posteo

Posteo

Online Services

Posteo is an email service based in Germany that focuses on privacy and security. It does not show ads or analyze user data. Emails are encrypted end-to-end by default.

privacysecurityencryptiongermany

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