I have a scenario.

In my organization we use Microsoft Exchange Distribution Lists of users. Now I have created a SharePoint site (2013), I would like to use these distribution lists to grant permissions to SharePoint site /folders.

SharePoint seems to be recognizing the groups but when added the error says Sorry, you are not allowed to share this with external users. Although it is an internal mailer group.

These distribution lists are not AD distribution groups, although it acts like one, that I can simply change the same to Security Groups. Also note, I can't change the distribution list to a security group any how.

Please help me out here, is there any way I can start incorporating these exchange mailer list into SharePoint security model?


No, they must be security groups to be used in permissions. Distribution lists cannot be used for security.

  • Yes that's exactly my problem, I was hoping if there is any work around solution. I can't change my mailers (DLs) to security groups, but is there any solution related to exporting the contacts from the mailer list and populate the Sharepoint security groups?
    – Ria
    Apr 13 '15 at 16:43

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