Proxy to SOAP Special Char error

I have a Proxy to SOAP scenario. Sender system may send some Danish characters but its failing in adapter with below error :

Error While Sending Message: Additional error text from response: com.sap.engine.interfaces.messaging.api.exception.MessagingException: java.io.IOException: Parsing Error: org.xml.sax.SAXParseException: Invalid byte 2 of 3-byte UTF-8 sequence.

In receiver Comm Channel I have used

1.    sap.com/com.sap.aii.af.soapadapter/XISOAPAdapterBeanLocal Enterprise Beansoap

2.    localejbs/AF_Modules/MessageTransformBeanLocal Enterprise Beantransform

3.    AF_Modules/TextCodepageConversionBeanLocal Enterprise Beanconvert

1. convertConversion.charsetUTF-8
2. transformTransform.ContentTypetext/xml

But non of them are working.

Sender is proxy so I can not set anything in Sender side. Please suggest what to in receiver SOAP CC to send and receive Danish Char