Can email users with a mailbox actually log into ISPC3 and change their password there and set mail filtering?
Thats implemented in svn and will get released as part of ispconfig 3.0.5. For the current versions there is a plugin for roundcube and squirrelmail available that allows email users to change their passwords.
I managed to let users change password in Horde. However not sure if the filtering options there work also for ISPC. Hence the question. Thanks for the quick feedback.
If you wrote a horde plugin that uses the ispconfig remote api to do the changes, then it will work. If horde tries to manipulate the ispconfig database or sieve files directly, then the changes will fail or will not benn shown in ispconfig or written to disk correctly.