Currently when we configure the Translation Manager service in SDL Web server and provide the TMS configuration details in TranslationManager.config file, there is no way to add Client Certificate information if the URL supports Mutual Authentication. Since we had a security requirement to use Mutual Authentication, we have implemented this by adding a Proxy layer in between which adds Client certificate to the request and then routes it to TMS. IT would be nice to have this feature to configure it in TranslationManager.config itself by adding another property.