Disposition-Notification-Options
AS2 request header that negotiates a signed MDN.
Definition
When requesting a signed receipt, the sender adds this header. The signed-receipt-protocol parameter sets the detached signature format (pkcs7-signature) and signed-receipt-micalg lists, in preference order (left to right), the MIC algorithms. Both parameters are REQUIRED whenever a signed MDN is requested.
Origin
Specified in section 7.3 of RFC 4130 (IETF, 2009), reusing the mechanism of RFC 3798 (Message Disposition Notification).
Example in context
Disposition-Notification-Options: signed-receipt-protocol=optional,pkcs7-signature; signed-receipt-micalg=optional,sha1,md5