Opensmtpd

pkg_add opensmtpd-extras opensmtpd-filter-rspamd dovecot dovecot-pigeonhole redis rspamd-- opensmtpd-filter-senderscore

export host="hostname"
export domain="domain.tld"
export fqdn="${host}.${domain}"

f="/etc/httpd.conf"; test -f ${f} && cp ${f} "${f}-$(date +'%s')"

cat << EOF > ${f}
# added $(date)
server "${fqdn}" {
  listen on * port 80
  location "/.well-known/acme-challenge/*" {
    root "/acme"
    request strip 2
  }
}
EOF
chown root:wheel ${f}; chmod 644 ${f}