The first Open-Source high-performance MTA developed from the ground-up for high-volume email sending environments.
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Updated
Jul 15, 2026 - Rust
The first Open-Source high-performance MTA developed from the ground-up for high-volume email sending environments.
Bringing the madness to mail delivery. #deltachat
LightMail is Lightweight IMAP/SMTP server with S3 storage support, written in Rust.
ecc, the email connectivity checker tool
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