insecureSkipVerify per path in Kubernetes ingress

Is it possible with Træfik 1.7, when defining a Kubernetes ingress resource, to set insecureSkipVerify to false for a single backend?

I have an external service that I want to proxy to which is TLS but it cannot set its certificate. I'd rather not set insecureSkipVerify to false for all the backends.

It doesn't look like its possible, but perhaps I've missed something.

Thanks.