Update README.md

README.md

@@ -5,9 +5,10 @@ Plan and document how an OpenBSD mailserver works.
 ## TODO
 
 - [ ] think about using postfix
-- [ ] add rspamd
+- [X] add rspamd
 - [ ] add roundcube webmail
 - [ ] add simple database admin interface
+- [ ] add backups using [restic](https://restic.net/)
 
 ## install software