Trust (external system and SAP)

Hi guys,
As part of a SAML scenario i need to establish trust between an external system and SAP PI (7.10) allowing the external system to send WS requests to SAP.
As per my understanding all I need to do is import the certificate chain into STRUST on the PI system. However I seem to be missing something.
What I have then done is to add root CA, issuer and public key of certificate to the certificate list of the following PSE's in STRUST: 'WS Security standard' and 'WS Security WS Security Key'. Next I restart the ICM.
However Im still getting an error when sending a WS-request to PI saying 'No trusted certificate found'.
I appreciate any help I can get.
Thanks in advance,
Daniel

Reposting in Security where it actually belongs.

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[0FI_AR_4 |http://www.file-upload.net/view-1447743/0FI_AR_4.jpg.html ]
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Regards,
Amit Jain

Depending upon what release you are on this weblog may help:
/people/thomas.jung3/blog/2004/09/09/receiving-e-mail-and-processing-it-with-abap--version-610-and-higher

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Trust (external system and SAP)

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