Windows 2012 r2 ADFS 3.0 federated with Office 365 SMTP does not work, authenticaiton error. Mac native mail client does not work. Skype for business on Windows 7 does not work.

Since our ADFS Windows 2012 R2 disable TLS1.0 cause smtp client does not work.

And the exception also not clear, all about authentication error!

So If you got same issue. Please check sever TLS setting.