Office 365 Message Encryption - One time passcode not working outside Microsoft system
The one time passcode was working few weeks ago for people outside of our organization, but it is no longer working and nothing has been changed from our end. I have been on a call with Microsoft Support and they told me that will not work with Gmail, which is not acceptable because our clients have their domain integrated with Google and they are using Gmail. It is also not working with Yahoo as well. OTP works with Hotmail because it is a Microsoft product. I know it works using a Microsoft Live account but that is not the point. Can you please find a way to fix this ?
Thomas Hansen commented
This must be a bug. It's working on some of our customers O365 portals. But some it dont. no apparent difference in config.
I finally found that if you are able to request the one time pass code but not receiving the email with the code, this may help.
Place the following email address into your Safe Senders Email List