File to Mail Scenario with the same attachment name

Dears,

PI has to pick the files (.txt/.xml/etc) from FTP and send them to a mail server with the same name as an attachment.

I have configured the scenario and facing following issue while testing...

Receiver Mail Adapter:

Audit Log:

2014-10-10 15:22:03 Information Delivering to channel: CC_RCV_Mail

2014-10-10 15:22:03 Information Swap: swapping by Content-Disposition ? Sep.pdf

2014-10-10 15:22:03 Information Swap: no matching payload found

2014-10-10 15:22:03 Information Mail: message entering the adapter

2014-10-10 15:22:03 Information Mail: Receiver adapter entered with qos ExactlyOnce

2014-10-10 15:22:03 Information Mail: calling the adpter for processing

2014-10-10 15:22:03 Information File "\ToBeProcessed\Sep.pdf" deleted after processing.

2014-10-10 15:22:05 Information Mail: call completed

2014-10-10 15:22:05 Information Mail: response message received 6da874f0-5080-11e4-93aa-00505694549f

2014-10-10 15:22:05 Information Mail: sending a delivery ack ...

I am getting attachment as MainDocument.xml even though the file name is Sep.pdf.

Could you please help me if i am doing any wrong in this case?

Thanks-
Ramesh.