How To Remove On Behalf Of In Outlook 2010/2007/2003

In Outlook you can give someone the ability to send from a mailbox or as another email address. You do this in Active Directory under Properties, Exchange General, Delivery Options, Send on Behalf.

But when you do that, be default it says "on behalf of" in the email header to those receiving such emails.

This is default behavior and is really a security measure, so it is always clear who sent the email.

To get rid of this and just appear to be the name of the user/mailbox only, you need to amend the security rights.

Go to Active Directory thenView, Advanced Features.

Then go back to Properties, click the Security tab (newly appeared), click Add, select the person you want to give the rights to, OK etc. Then in the box below with the permissions breakdown, click on "Send As" in the Allow column.

That's it.