Hi
In certain distribution groups we have been adding people to the delivery management list, so that only mentioned people are allowed to send email to the groups. We were adding it through the O365 web portal. Now, we have ADFS in place. We are now trying to remove all names from the list but it is not happening from the web, as it prompts to delete it from the on-premise active directory (AD) which is synced with O365. The issue is that the distribution groups in the Azure AD don't have the user names in the authOrig attribute (the ones we added from the portal prior to creating ADFS). So, we are unable to delete them. Kindly guide in emptying the delivery management list.
Kindly provide a solution ASAP, as this is very urgent.
