A Microsoft file hosting and synchronization service.
Dear David,
Thanks for writing back and updating us.
As per the further updates, we would like to apologies if our previous reply caused inconvenience but as a Microsoft Moderator in this community, we always try our best to assist the user concerns but we understand the news delivered didn’t satisfy you but the reason for the delivering of bad news is due to the by design feature where the Distribution List is created for distribution of the emails to bulk users and not designed for sharing the content in the OneDrive or SharePoint Online.
In this situation, I have tested and found a simple workaround that can meet your requirement and please follow the below steps:
Step 1: Open the Office 365 admin center> Groups> Active Groups> Security Groups> Add a mail-enabled security Group> Give a name> Give yourself as Owner> Add the “Distribution List” as a member> Give a prefix for the email address> Create a Mail-enabled security group.
Step 2: Now, go to the SharePoint Online site or OneDrive for Business, share the content to the Mail-Enabled security group.
By this way, you no need to add the members manually to the mail-enabled security group, where you can just add the members to the Distribution List, but use the Mail-enabled security group when sharing in OneDrive or SharePoint Online.
Thanks for understanding and if you feel my reply helped to explain your situation, please click on the helpful button (Yes or No) in the reply. Please check the picture below:
In the future, if you have any further concerns related to Office 365, please feel free to post a new thread in this community and we will try our best to assist you.
Have a good day!!
Best Regards,
Sophia