2.2.2.23 EstimatedDataSize

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The EstimatedDataSize element is a child element of the Attachment element (section 2.2.2.7), the Body element (section 2.2.2.9), and the BodyPart element (section 2.2.2.10) that provides an informational estimate of the size of the data associated with the parent element.

The value of this element is an integer value ([MS-ASDTYPE] section 2.6).

The EstimatedDataSize value represents an estimate of the original size of the content in the message store and is specified in bytes. This number is only an estimate, and the actual size of the content when fetched can differ based on the content filtering rules applied.