-* Add convenience methods (e.g. user_exists, domain_exists) that we
- can use in the tests to check results.
-
-* Potentially add OpenDKIM support.
+* The AgenDAV "user exists" test is wonky, because there's no real
+ users in AgenDAV. Right now we check the "username" column in the
+ "prefs" table, but all of the shares (and principals?) have URLs
+ instead of usernames. We don't parse the URLs, and instead rely
+ on doing find/replace of substrings in e.g. AgendavMv.