While connecting from ECC --> SAP PI --> SFDC.
I am getting the Error as below. But we are not using any certificates at receiver SOAP adapter.
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
-<!--
Inbound Message
-->
-<SAP:Error SOAP:mustUnderstand="1" xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/">
<SAP:Category>XIAdapterFramework</SAP:Category>
<SAP:Code area="MESSAGE">GENERAL</SAP:Code>
<SAP:P1/>
<SAP:P2/>
<SAP:P3/>
<SAP:P4/>
<SAP:AdditionalText>com.sap.engine.interfaces.messaging.api.exception.MessagingException: java.io.IOException: Failed to get the input stream from socket: iaik.security.ssl.SSLCertificateException: Peer certificate rejected by ChainVerifier</SAP:AdditionalText>
<SAP:Stack/>
<SAP:Retry>M</SAP:Retry>
</SAP:Error>