'X-Confirm-Reading-To' field. May be empty. It's easier to use RequestReadReceipt()()()() method then adding addresses to this property.

Namespace: Limilabs.Mail
Assembly: Mail (in Mail.dll) Version: 3.0.12102.1426

Syntax

C#
public IList<MailBox> XConfirmReadingTo { get; private set; }
Visual Basic
Public Property XConfirmReadingTo As IList(Of MailBox)
	Get
	Private Set
Visual C++
public:
property IList<MailBox^>^ XConfirmReadingTo {
	IList<MailBox^>^ get ();
	private: void set (IList<MailBox^>^ value);
}

See Also