Hi,

Im new to Exchange development but do have Design and Implementation experience.

Using the Exchange Managed API, I would like to do the following:

Get all rooms
Find all appointments which are reoccuring
Find all appointments where the organizer no longer exists in AD/Exchange
Cancel these meetings.

Is this possible at all?

Any help greatly appreciated.

>> Is this possible at all?

Yes

>> Im new to Exchange development but do have Design and Implementation experience.

So the best place to start would be https://msdn.microsoft.com/en-us/library/office/dn567668(v=exchg.150).aspx and start writing some code that access mailboxes and calendars.

>> Get all rooms

Use a Room List https://code.msdn.microsoft.com/office/Exchange-2013-Get-a-room-0eada812

>> Find all appointments which are reoccurring

https://msdn.microsoft.com/en-us/library/office/dn495614(v=exchg.150).aspx

>> Find all appointments where the organizer no longer exists in AD/Exchange

 You will need to develop something to do this using the properties from the Meeting object (eg the Organizer property will give you the Email Address (or possibly only the X500 address if the user has been deleted)

>> Cancel these meetings.

 The Organizer is the only person that can cancel a meeting, you can delete the Meeting object from the Room mailbox but this won't affect the copy of the Meeting held in the Attendees mailbox. What you should do is before deleting the Ex-Employees Mailbox is find any meetings that need to be cancel and then Impersonate the User https://msdn.microsoft.com/en-us/library/office/dd633680(v=exchg.80).aspx and submit the cancel the meeting using https://msdn.microsoft.com/en-us/library/office/dd633667(v=exchg.80).aspx

Cheers
Glen