We are experiencing an issue when making a web service callout using a certificate (self-signed). The external system hosting this web service is Microsoft 2012 server with IIS.
The error message from the IIS log is "A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider" with error code 403.16

The error message received as a response to the call in SFDC is "Web service callout failed: Unexpected element. Parser was expecting element 'http://schemas.xmlsoap.org/soap/envelope/:Envelope' but found 'http://www.w3.org/1999/xhtml:html'"

Has anybody come across such issue ?

We are experiencing an issue when making a web service callout using a certificate (self-signed). The external system hosting this web service is Microsoft 2012 server with IIS.
The error message from the IIS log is "A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider" with error code 403.16

The error message received as a response to the call in SFDC is "Web service callout failed: Unexpected element. Parser was expecting element 'http://schemas.xmlsoap.org/soap/envelope/:Envelope' but found 'http://www.w3.org/1999/xhtml:html'"

Has anybody come across such issue ?

We are experiencing an issue when making a web service callout using a certificate (self-signed). The external system hosting this web service is Microsoft 2012 server with IIS.
The error message from the IIS log is "A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider" with error code 403.16

The error message received as a response to the call in SFDC is "Web service callout failed: Unexpected element. Parser was expecting element 'http://schemas.xmlsoap.org/soap/envelope/:Envelope' but found 'http://www.w3.org/1999/xhtml:html'"

Has anybody come across such issue ?