Duplication issue when an Office 365 delegate invites a meeting attendee who has an Exchange 2010 mailbox (vNext)

Symptoms

A delegate in Microsoft Office 365 invites a required attendee to a meeting on a principle’s calendar, which is located in a Microsoft Exchange Server 2010 on-premises mailbox. When the attendee accepts the meeting, the attendee is displayed as both an “Optional” and “Required” attendee.

Cause

This problem occurs because the calendar assistant in Exchange 2010 expects the principle and delegate to exist in the same forest (both on-premises or both in-cloud).

Resolution

To resolve this issue, move the principle mailbox to Exchange Server 2013 or a later version of Exchange.
Özellikler

Makale No: 3182374 - Son İnceleme: 28 Tem 2016 - Düzeltme: 1

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