We recently had an issue with a user Calendar getting pinched during a EDB/MDB rebuild after an SBS 2003 restart - this resulted in a number of User calendar items failing sync when other users had the Calendar share synchronized in Cached Exchange Mode.

We're using CalCheck (blogs.technet.com/.../calcheck-the-outlook-calendar-checking-tool.aspx) against calendars to find any corrupted or otherwise borked entries and every single calendar activity created by CRM 4 and sync'd with Outlook (2007) reports back with the issue "No Organizer Address" and "No Sender Address" in the outlook Calendar item.

What can I do to ensure that future CRM activities are created with an Organizer and a Sender?

Also - what will happen to CRM created Calendar items that are Closed in CRM if they are moved from the Calendar into a non-Calendar folder? (calcheck -F).