Exchange Online to block emails from vulnerable on-prem servers

https://www.bleepingcomputer.com/news/security/exchange-online-to-block-emails-from-vulnerable-on-prem-servers/

https://twitter.com/home/status/1640503986494099459

https://twitter.com/home/status/1640608378182574080

https://twitter.com/home/status/1640612773158584325

https://twitter.com/home/status/1640660456032329729

https://twitter.com/home/status/1640673902065078273

https://twitter.com/home/status/1640685395569459200

https://twitter.com/home/status/1640700829006020611

https://twitter.com/home/status/1640737866484523011

https://twitter.com/home/status/1640820055754567681

https://twitter.com/home/status/1640841465491275778