Did Microsoft start blocking non TLS emails?
I’m starting to get complaints about external emails being rejected with the error: Remote host said: 454 4.7.0 Connection is not TLS encrypted. Recipient organization requires TLS.
This appears to have started on 6/27/2024. I haven’t made any recent changes, so it seems like a change on Microsoft’s end?
I’m starting to get complaints about external emails being rejected with the error: Remote host said: 454 4.7.0 Connection is not TLS encrypted. Recipient organization requires TLS. This appears to have started on 6/27/2024. I haven’t made any recent changes, so it seems like a change on Microsoft’s end? Read More
