Affected services:

  • Email, messaging & calendar

Issues with on Safari Browsers

Opened on Wednesday 4th May 2022, last updated

Resolved — Microsoft’s fix addressing the impacting property mismatch has successfully completed deployment. They have confirmed via service telemetry and through additional reports from some formerly affected users that impact is remediated for all users.

Posted by Tom Spiteri

Investigating — We're currently aware of an issue where Safari continually downloads a file called "TokenFactoryIFrame" whilst accessing This appears to be a global issue which Microsoft are investigating. We'll update you when we know more.

Posted by Matt Dennis