Send email from different mailbox which doesn't show on behalf in Exchange 2003
I have got a user which has access to different user mailbox with full permission. He wants to send email with that user email address but not on behalf. He don't want the other end see "On behalf". He wants to just said the email comes from that person.
Please tell me which premission need to set. I know with domain admin can do that, but I don't want give that persion domain admin rights.