Hi there - When a client of mine receives an email on his blackberry and others are copied on that email he is unable to view who all was copied. He can reply to all and those in the list get the email, but he doesn't know who all he is sending it to.
What can be done or what settings need to be changed to allow the user to see who is on that Cc line?
That really depends on the company. In most cases, large companies will not allow their emails to go out on the BIS (Blackberry Internet Service), they require the BES so that they can input an IT policy and restrict access to the end user to whatever the company chooses.
You said he was a client, so he is not with your company right? His company could have him on the BES which would allow him to recieve email from trusted accounts (like yourself) but restrict him from viewing parts of the email (like links, images, or possibly other recipients.)