Duplicate messages while use mail adapter

Hi,

We are working on a scenerion which is like this

Mail server to PI to ECC

But the sender mail adapter has duplicated the message,that is,the message is posted twice in the Integration Engine(SXMB_MONI).

We got the following SAP Notes in that regard

Note 1468660 - Duplication check for pop protocol

Note 1551313 - Duplicate check for POP at before start of module chain

Note 1518864 - Duplicate messages while use mail adapter - SAP Note 1468660

Note 1241039 - Duplication check and reliablity of mail adapter

Processing Sequence:

Number Module Name Type Module Key

1 AF_Modules/PayloadSwapBean Local Enterprise Bean 1

2 localejbs/ExcelToXMLBean Local Enterprise Bean 2

3 AF_Modules/MessageTransformBean Local Enterprise Bean CHAN

4 sap.com/com.sap.aii.adapter.mail.app/XIMailAdapterBean Local Enterprise Bean mail

Module Configuration

Module Key Parameter Name Parameter value

1 swap.keyName payload-name

1 swap.keyValue MailAttachment-1

CHAN Transform.ContentType text/xml;charset=utf-8

Can you please suggest the work around on this situation or which of the above mentioned SAP Notes will be applicable or useful for this scenerio?

Thanks in advance