Configuring a Receive Port for Incoming MDNs

To receive an AS2 MDN, create a one-way HTTP receive port to receive the message and return a response back to the party.

A two-way request-response receive port that is used to receive AS2 messages should not be used to receive MDN messages. Using a request-response receive port for an MDN would prevent a 200OK message from being returned in response to the incoming MDN, thereby causing unnecessary retries of the MDN transmission.

You can use either the AS2Receive or the AS2EdiReceive pipeline to process a received MDN. However, if you use AS2EdiReceive, you cannot route the MDN into the MessageBox by setting the Process inbound MDN into MessageBox for routing/delivery options property on the Acknowledgements page of the one-way agreement tab. Trying to do so will result in an EDI error because the MSN will be passed to the EDI Decoder, which cannot process an MDN. If the MDN is not sent to the MessageBox, the AS2Decoder will consume the MDN, so it will not be passed to the EDI Decoder.

Create the receive port with the following configuration:

Location	Property	Setting
Receive Port Properties: General	Port type	One-Way
Receive Location Properties: General	Transport Type	HTTP Note Only the HTTP adapter can be used for transporting MDNs, which are EDIINT/AS2-encoded messages. This transport will not work with an adapter other than the HTTP adapter.
Receive Location Properties: General	Receive handler	BizTalkServerIsolatedHost
Receive Location Properties: General	Receive pipeline	AS2Receive or AS2EdiReceive
HTTP Transport Properties	Virtual directory plus ISAPI extension	/<name of virtual directory>/BTSHTTPReceive.dll

See Also

Configuring Ports for an AS2 Solution