Here's a great writeup by an OpenSMTPD developer: https://poolp.org/posts/2019-09-14/setting-up-a-mail-server-with-opensmtpd-dovecot-and-rspamd/ https://poolp.o

Here's a great writeup by an OpenSMTPD developer: https://poolp.org/posts/2019-09-14/setting-up-a-mail-server-with-opensmtpd-dovecot-and-rspamd/ https://poolp.org/posts/2019-09-14/setting-up-a-mail-server-...