I have just wrote a nice tool to cleanup calendars.
I had a lot of troubles with corrupted calendars thanks to faulty migrations and half done PDA synchronizations, so I wrote a tool to cleanup all or at least part of a calendar.
It is a small python script that needs python-ldap and MySQL-python packages. It has been tested with Zimbra OS 4.5.10. The use is simply:
then interactive questions will guide you.
As usual, all feedback is very welcome.
I attach the RPMs and the script.