Internet Engineering Task Force (IETF) T. Hansen, Ed. Request for Comments: 6533 AT&T Laboratories Obsoletes: 5337 C. Newman Updates: 3461, 3464, 3798, 6522 Oracle Category: Standards Track A. Melnikov ISSN: 2070-1721 Isode Ltd February 2012 Internationalized Delivery Status and Disposition Notifications Abstract Delivery status notifications (DSNs) are critical to the correct operation of an emai
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