Hi Emma,
May I now how did you delete the meeting? If you want to delete a meeting which you are the organizer, Outlook will ask you to send out the Cancellation notification. The only method I know is to change Outlook to Work Offline mode, send the cancellation
and then delete the cancellation from Outbox.
>>I have located the invite in my deleted items but have been unable to restore it to my calendar - I have tried move to calendar and drag and drop.
When I tried to restore a deleted meeting from the Deleted Items folder, I can drag it from the Deleted Items folder and then drop it to the Calendar navigation pane:

After that, the meeting showed up in my calendar and then I could send out the cancellation. Were you trying to restore it using the same method?
Regards,
Steve Fan
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