Loading Invoice XML IDoc with digital signature via XI into R/3

Question

Hi,
I received an Invoice XML IDoc with digital signature via Mail (for test purposes) and want to load it via XI into an R/3 systeme.
My idea is to load the Invoice XML IDoc file via the File Sender Adapter into XI and send it to the R/3 system via the IDoc Inbound adapter.
Due to the digital signature the file looks like this:
0‚ S      *†H†÷
    ‚ D0‚ @   1 0       +      0‚ '      *†H†÷
    ‚   ‚   ‚ –0‚ ’0‚ û      etc.
When I load the file like this with the File Sender Adapter, an error message occurs in the XI Monitoring as the XML Parser cannot read the file due to the digital signatur (as expected).
Has anybody an idea how I can configure the File Sender Adapter Communication Channel to be able to load only the XML IDoc and ignore the digital Signature strings?
Thanks in advance for your support.
Alex

Answer 1

BTW
do use the second way you need:
Security Settings for the Sender Mail Adapter
http://help.sap.com/saphelp_nw04/helpdata/en/27/c0524257a1b56be10000000a155106/content.htm
and
Key Storage Service
http://help.sap.com/saphelp_webas630/helpdata/DE/e9/a1dd44d2c83c43afb5ec8a4292f3e0/content.htm
apart from adapter module config
Regards,
michal