Symptoms
When you use the BizTalk Adapter for WebSphere MQ (MQSC Adapter), the dynamic send port is configured to use the Secure Sockets Layer (SSL) connection to the IBM MQ server, but the "useSSL=true" setting isn't updated. Therefore, the SSL connection fails even if you have set all other SSL related properties.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
This issue is fixed in the following cumulative update for Host Integration Server:
References
Learn about the terminology that Microsoft uses to describe software updates.