LegacyExchangeDN attribute is displayed when you use Outlook Web App to view an appointment in Exchange Server 2013
When you view an appointment in Microsoft Outlook Web App for a recurring meeting and the meeting occurrence is canceled by its organizer in a Microsoft Exchange Server 2013 environment, the organizer's LegacyExchangeDN attribute instead of his or her name is displayed in the appointment. The appointment that contains the LegacyExchangeDN attribute looks something like this:
However, the expected appointment for the organizer should look like:
/O=CONTOSO/OU=EXCHANGE ADMINISTRATIV GROUP (XXXXXXXXXXXXXXX)/CN=RECIPIENTS/CN=UserName
Note There's no issue with the meeting request itself. The issue is related to the way of displaying the organizer's name.
This issue occurs because Exchange Server 2013 sets the LegacyExchangeDN attribute for the mismatching or not-presenting organizer property in a meeting appointment.
To fix this issue, install Cumulative Update 10 for Exchange Server 2013.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 3080221 - Last Review: 03/11/2016 02:49:00 - Revision: 2.0
Microsoft Exchange Server 2013 Enterprise, Microsoft Exchange Server 2013 Standard
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