Mail Receiver Adapter with the additional Content Tag

Hello Experts,

Good day,

I am facing a problem with Mail receiver adapter with the XML structure

We added recently 'MultiContent' in the structure and after that we get this error. It worked before without 'MultiContent' tag

Connector log:

Message processing failed. Cause: com.sap.aii.af.sdk.xi.srt.BubbleException: Failed to call the endpoint [null "null"]; nested exception caused by: com.sap.aii.af.sdk.xi.util.XMLScanException: expecting end tag: {http://sap.com/xi/XI/Mail/30}Mail, but found {}MultiContent at state 1

Could you please give me some hints on this?

Thank you very much.

With Best Regards,
Sateesh