MapiAttachment.IsReference

MapiAttachment.IsReference property

Gets a value indicating whether the attachment is stored as a reference rather than being embedded in the email.

public bool IsReference { get; }

Property Value

true if the attachment is stored as a reference; otherwise, false.

Remarks

This property determines if the attachment is referenced by its file path or a web link based on the PidTagAttachMethod MAPI property. The following values indicate a reference-based attachment:

  • 0x00000002 - afByReference: The attachment is identified by a fully qualified file path, accessible to recipients with shared access to the file server.
  • 0x00000004 - afByReferenceOnly: The attachment is identified solely by its fully qualified file path.
  • 0x00000007 - afByWebReference: The attachment is identified by a web link, with the PidNameAttachmentProviderType specifying the web service API handling the attachment.

If the attachment does not match these criteria, this property returns false.

See Also

MapiAttachment.IsInline MapiAttachment.ItemId