I created an ordinary user mailbox on my Exchange 2007 server. I then used the SHELL command to make it a shared mailbox. I gave a user FULL ACCESS permission, then I went to MAIL FLOW SETTINGS and granted SEND on behalf of permission. I later realized that I want to user to be able to send as the shared mailbox and do not want "on behalf of" or the user's name involved, I just want it to appear to come from the shared mailbox. I right clicked the mailbox and gave the users SEND AS permissions and took her out of the Send on behalf of, but I still get the same message. How can I get a user to send from the shared mailbox with out "on behalf of"??