Forum Discussion

Anonymous

Oct 23, 2018

Block OneDrive Attachments from Outlook Web Browser

We have recently rolled out OneDrive for our corporate. One issue we currently have is any user can access all his onedrive files as attachments from outlook web browser. When they access Outlook web...

office 365

VasilMichev

MVP

Oct 23, 2018

If you have configured device-based CA policies, those will apply to this scenario as well. Without CA however, your only option is to block this feature altogether, for both managed and unmanaged devices.

Anonymous
Oct 23, 2018
Thanks Vasil,

Is there any documentation available for configuring CA policy to just block attachments from un managed devices. Please let me know.

Thanks
- VasilMichev
  MVP
  Oct 23, 2018
  It's not just for attachment, but for working with SPO/ODFB files in general:
  
  https://techcommunity.microsoft.com/t5/Outlook-Blog/Conditional-Access-in-Outlook-on-the-web-for-Exchange-Online/ba-p/267069