Hi xingtai2000, I find your question is a bit unclear. What is it exactly that you want this user to do? Please give us some more details.Martina Miskovic

Dear, We are trying to Grant permission to one user on behalf of Distribution group in Exchange2003 with Exchange Users & Groups, any instruction to fulfill this request? Thanks in advance! Xingtai2000

Hi, By the way, do you want to grand a user send-on-behalf a distribution group permission? In Exchange 2003, it is by design that "send on behalf of" can only be granted to a mailbox, such as a user or a resource mailbox. And you can use ADUC to grand send on behalf permission. For more detail steps, you can refer to the article ‘How to Use Active Directory Users and Computers to Give a User the Ability to Send Mail on Behalf of Another User’. Hope this helps. Thanks Sophia Xu