Hi,
I have recently added one more profile into my outlook 2013, thereafter i started getting an error in my main profile account as given below :
You can't send a message on behalf of this user unless you have permission to do so. Please make sure you're sending on behalf of the correct sender, or request the necessary permission. If the problem continues, please contact your helpdesk.
But still I can send message from this account through OWA without having any issue.I tried deleting the newly added profile, deleting and recreating the main account profile, offline address book folder etc.. without any luck. Please help to get out of this strange error.