opensmtpd

secure, reliable, lean, and easy-to configure SMTP server

Description

The OpenSMTPD server seeks to be
 * as secure as possible, and uses privilege separation to mitigate
   possible security bugs
 * as reliable as possible: any accepted email must not be lost
 * lean: it covers typical usage cases instead of every obscure one
 * easy to configure, with a configuration syntax reminiscent of the OpenBSD
   Packet Filter's (PF)
 * fast and efficient: it can handle large queues with reasonable performance

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Homepage

https://www.opensmtpd.org/


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