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IsExternalMailbox
The IsExternalMailbox element indicates whether the mailbox is external to the organization.
Last modified: November 02, 2012
Applies to: Exchange Online | Exchange Server 2013 | Office 365
<IsExternalMailbox>true | false</IsExternalMailbox>
Boolean
The following sections describe attributes, child elements, and parent elements.
Attributes
None.
Child elements
None.
Parent elements
SearchableMailbox
A text value of true for the IsExternalMailbox element indicates that the mailbox is in an external organization. A value of false indicates that the mailbox is in the organization.
This element was introduced in Exchange Server 2013.
The schema that describes this element is located in the IIS virtual directory that hosts Exchange Web Services.
Namespace
http://schemas.microsoft.com/exchange/services/2006/types
Schema name
Types schema
Validation file
Types.xsd
Can be empty
False