| UpdateDelegates(Mailbox, Nullable<MeetingRequestsDeliveryScope>, IEnumerable<DelegateUser>, CancellationToken) | Updates delegates on a specific mailbox. Calling this method results in a call to EWS. |
| UpdateDelegates(Mailbox, Nullable<MeetingRequestsDeliveryScope>, CancellationToken, DelegateUser[]) | Updates delegates on a specific mailbox. Calling this method results in a call to EWS. |