Restoring Calendar Events results in sending invite mails to attendees

Hi,


I am working on a C# project that requires Calendar events to be restored to a target mailbox.


When I restore a Calendar event  with attendees to an alternate target mailbox, using Exchange Web Service Upload Items api, Exchange tries to send mails to all attendees of the Calendar event.


This is undesirable behavior since restoration of a past event should not result in mails being sent to attendees.  How can I restrict Exchange from sending these mails

Also, the ownership of the calendar event should get changed from the original mailbox user to the target mailbox user.  Right now, on restoring calendar events to  an alternate mailbox in a different domain, Exchange online fails with an error "You do not have the permission to send the message on behalf of the specified user."

Can anyone please suggest a solution for this issue.

Thanks,
Gagan