On 10 May 2021, at 19:31, Matt Grant <m...@mattgrant.net.nz> wrote: > We are using Outlook 2013, 2016 and 2019,
You definitely should not be using Outlook 2013. It has serious issues, and does not support modern TLS v1.2/1.3 I am unsure if Outlook 2016 does, but I know 2013 does not. Also, mainstream support for Outlook 2013 ended 3 years ago. -- Two, Four, Six, Eight! Time to Transubstantiate!
