This tutorial demonstrates a full-featured email server running on OpenBSD using OpenSMTPD, Dovecot, Rspamd, and RainLoop. OpenSMTPD is the default mail server for OpenBSD. Choose a Vultr Compute Cloud instance with plenty of storage for the expected number of users. Verify the server's [outbound port status](https://docs.vultr.com/what-ports-are-blocked). Set up your user account to perform tasks as root. su - usermod -G wheel echo "permit nopass keepenv :wheel" > /etc/do......