GWPNS to only accept connections using TLS1.2 or above
Pardon my ignorance...
What is GWPNS? I don't recognize the acronym and neither does Google!
Thanks for that catch...sometimes we get so used to using acronyms that we forget to spell them out. This one is GroupWise Push Notification Service. This is mostly used by the Messenger mobile clients. Calendar Publisher also uses it. Up to the date of this change, the server has only been using the earlier versions of TLS.
Hope this helps 🙂