اعتبارًا من 31 أكتوبر 2018، لن تدعم Microsoft Office 365 بروتوكولي TLS 1.0 و1.1 بعد الآن

[fefrei (Felix Freiberger)]

Just as a reference of what others are doing, GitHub (which admittedly has an audience that is rather likely to keep browsers up to date) is disabling TLS 1.0 and 1.1 now:

Weak cryptographic standards removal notice