TLS - Renegotiation

We activated TLS on our Sophos Email Appliance (v4.5.0.1) and checked our settings with checktls.com and internet.nl.

On checktls.com it shows us that our TLS is working fine, but on https://internet.nl we receive a warning/advise to disable client-initiated renegotiation. 

(I removed our domain on the screenshot)

 

Is this possible on the Sophos Email Appliance and how can I do this ?

  • I opened a support ticket and got this reactions:

    "We are aware of the need to disable this (Logged with Development under SEA-290) but we do not yet have a version where this will be resolved."

    "The current expectation is that this will be addressed Q2 2019"

     

    To be continued....... ;)