I am running into an issue here, and unfortunately I'm only standing in until we hire a new Exchange admin. Here's a generic scenario of what is going on... I have a distribution group that both users and mail-enabled public folders have been granted "Send As" rights for. This distribution group was migrated from our 2003 system. Recently, I tried granting a new user "Send As" rights to this distribution group but received the following error: "domain.com/Microsoft Exchange System Objects/Public Folder" is not an individual recipient object. We had an issue with our aliases being incorrect (spacing from 2003), but I have corrected this issue and tried adding numerous other public folders to a test distribution group with the same error. It's myunderstanding (note: I have not tried so I cannot confirm)that I should be able to use ADUC to add the user to the distribution group's ACL with send-as rights, but I don't see this as a feasible option going forward. Basically what my limited Exchange knowledge is telling me is that I need to do this: Change the public folder's email to something different (add a 2 at the end, for instance) Remove it from the address book Create a new user with the public folder's original email address, forward to public folder, publish in address book Remove public folder from distribution group, add user in it's place. Or am I just severely overcomplicating something that has an easy fix? :-) Thanks, Matthew DeBoer

I'm pretty sure set-distributiongroup only works on universal groups. what is the group type?

It's a mail-enabled universal security group.

Hi Matthew, Please understand that Set-DistributionGroup command only grant Send On behalf of permission to the user. I suggest that you use Add-ADPermission command to work around the issue which grant Send As permission to the user. For example: Add-AdPermission "Group Name" -user "User Name" AccessRights extendedright -ExtendedRights "send as" For your reference: http://technet.microsoft.com/en-us/library/bb124403.aspx http://technet.microsoft.com/en-us/library/bb124955(EXCHG.80).aspx Mike