Outlook 2010 Delivery has failed "You can't send a message on behalf of this user" but I'm not sending on behalf of him I'm sending TO him!
Posted on 2012-09-10
I've got a user who has a problem with Outlook 2010 running on an Exchange 2010 SBS system. The annoying thing is this issue cropped up before and I found the answer on Google but I can't find it now. The user is trying to send an email to a customer (from her own email account) but she is getting a bounce back saying "You can't send a message on behalf of this user unless you have permission to do so"
Thing is she's not sendint he emial on behalf of someone else she's sending it TO the someone else. I remember the problem before was something to do with the way Outlook 2010 stored the email information in previous emails and something needed right clicking and editing to remove a tag which fixed the issue but I've had a quick go and nothing is jogging my memory!
Really appreciate some help on this please.