MDNReceiptSigningProtocol (property)
This property contains the MIME type of the signature used, if any (i.
- (NSString*)MDNReceiptSigningProtocol
Default Value
""
Remarks
This property contains the MIME type of the signature used, if any (i.e., "application/pkcs7-signature"), to create this mdnreceipt. It will contain an empty string if the receipt is unsigned.
This property is read-only.