Is there a way to remove email addresses in the CC field that users include in their email to the service desk? 

E.g. Someone emails the service desk, and CCs an erroneous email address. We can remove the email directly when doing a Reply, but when we Resolve or Close an incident it sends a notification to the erroneous CC'd email and it bounces back, thus reopening the ticket.

We still want to send a notification to CC'd users when we resolve or close a ticket, just not to emails that are incorrect.

Regards,

Willie