Cannot subscribe to MS365 RSS feed

Hi,
I cannot add https://www.microsoft.com/en-us/microsoft-365/RoadmapFeatureRSS/
This feed is working in other reader

Grtz

2022-11-18 22:08:35 HTTP Error (403)

403 means forbidden. they are blocking newsblur. please contact microsoft about it.

Why should I contact MS?
I cannot give them essential info like e.g. source ip’s.