Hi All, Ok so in Exchange 2007 you could mail-enable a securtiy distribution group and then crack open a shared mailbox and delegate the distribution group to be able to send on behalf of that shared mailbox. Now that we are in Exchange 2010 this no longer works?? I tried doing the same process with no such luck. I have also used the following powershell command. get-mailbox -identity "name of mailbox" | set-mailbox -grantsendonbehalfto "distribution group" the powershell works as I see it in the get-mailbox | fl however it does not show in the gui the group nor do the users have the ability to send on behalf that are in the distribution groups. Please help out.. What am I missing... Thanks in advance!!

Is it a mail-enabled universal security group?Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hello Robert, Any update?Gulab | MCTS-MCITP Messaging: 2010 | MCTS-MCITP Messaging: 2007 | MCC 2011 | Skype: Gulab.Mallah

Hi Robert, How about the issue? Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi! I have exactly the same question: Exchange 2010 SP1, I want to grant "send on behalf" on mailboxes using "mail enabled security groups" - in EMC: it's not possible, groups are not shown up to set - in EMS: it's working fine - in Outlook (2007): it is working (but only if group is shown in GAL) Why it is not possible to set the permission bei EMC, also set "send on behalf permissions" (by EMS) are not shown there. Is it a bug or per design? Thanks in advance!