Outlook "Send on Behalf of" is missing when sending as delegate

Outlook "send on Behalf of" is missing after sending mail from a delegated share mailbox.
this is what I have done so sar...
1) I gave send as permission in Exchange 2007 Management Console.
2) I logged on as the "shared Mailbox" to assign delegates permissions for myself. Inbox etc.
3) I also right click on Mailbox, properties, permissions and set myself with Editor access.
4) Now logged on to outlook with the shared mailbox already in my outlook folder list.
5) replied to a message from "Shared Mailbox" added my name to the FROM field and then sent the mail.
checked the received mail and it shows from "ME" with NO "Sent on behalf" shared mailbox.

I have searched around for days and can not find a simple or straight forward solution to this irriatable problem.
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It works as should do.  Just grant yourself "send on behalf of" right instead of "Send As".
See http://www.cryer.co.uk/brian/msexchange/exch_howto_grant_send_on_behalf_of.htm

MessagingMoAuthor Commented:
I did all those steps before and no luck.
Did you remove "Send as" right?
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MessagingMoAuthor Commented:
I did not remove "Send as" right in Exchange 07 Management console.
Instead, I added myself to the "Send as" through the EX07MC, mailbox properties, mail flow settings, delivery Options. I did not add myself to manage the mailbox as this may prevent the Send as from displaying, I've been told.
In EMC, select a mailbox, right-click and select Manage Send As properties. Do you see yourself there in the list?
MessagingMoAuthor Commented:
YES I see myself there.
Remove yourself from there.

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MessagingMoAuthor Commented:
Done...it worked...
The problem is that I can not be in Send As and Send on behalf.
Thanks a lot for this.
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