Exchange Online Rejects Old TLS Connections in January 2021

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MVP

 

As you wind down the holidays, a festive notice that Exchange Online will soon begin to reject communications with other email servers if they don't use TLS 1.2. Outbound mail won't go and inbound mail will be declined, including messages sent from multi-function devices. Time to do some checking...

https://petri.com/old-tls-going-exchange-online

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