The problem:You
do not have permission to send on behalf of the specified user when
trying to send via Outlook 2003. However all mailbox permissions are
correct. Can't send any messages, can recieve fine though, you may see
an warning event log message on the exchange server each time the user
tries to send. The cause:Anyways, the PC stored
the password for the exchange profile and I ended up adding another
profile and deleting the initial profile (cause I messed up)…and now the
PC still had the old password saved but using the new profile…so now
the user received the now infamous “‘You do not have permission to send
on behalf of the specified user’” message. The Fix:1. Go to Start ->Run -> Type "control keymgr.dll" 2.
Now you can either delete the stored password for your FQDN exchange
server or edit it and make sure the username and password arecorrect For
some reason on our case this has been changed, we believe it was when
testing logging in as a different user via webmail and it put the wrong
credentials in the windows keychain (didn't know their was one!) so it
was logging onto Outlook as the wrong user, and then denying the ability
of the user to send a message as them! Note: there are other causes of this error, but this was very specifically down to the keychain in the user's profile. Note: Recreating the outlook profile doesn't make any difference. Note: Recreating the user's profile should delete this keychain and would probably fix the problem too. |