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AtMail Open vs Courier-MTA

A side-by-side look at AtMail Open and Courier-MTA. 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
Courier-MTA

Courier-MTA

Office & Productivity

Courier-MTA is an open source mail transfer agent (MTA) used for sending, receiving, and routing email. It is designed to be fast, scalable, and flexible with high throughput.

mail-transfer-agentmtaemailsendingreceivingrouting