sendmail.opensmtpd

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

Install

All systems
curl cmd.cat/sendmail.opensmtpd.sh
Debian Debian
apt-get install opensmtpd
Ubuntu
apt-get install opensmtpd
Alpine
apk add opensmtpd
Arch Arch Linux
pacman -S opensmtpd
image/svg+xml Kali Linux
apt-get install opensmtpd
Fedora
dnf install opensmtpd
Windows (WSL2)
sudo apt-get update sudo apt-get install opensmtpd
Raspbian
apt-get install opensmtpd
Dockerfile
dockerfile.run/sendmail.opensmtpd
Docker
docker run cmd.cat/sendmail.opensmtpd sendmail.opensmtpd powered by Commando

opensmtpd

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

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