doas nano /etc/mail/smtpd.conf # change action "delivery" to use maildir (without path) instead of lmtp
doas pkg_add dovecot
doas nano /etc/dovecot/conf.d/10-mail.conf # change the mail_location line to: mail_location = maildir:~/Maildir
doas rcctl disable cyrus_imapd
doas rcctl enable dovecot
doas rcctl start dovecot