Forward an email to open a ticket
Many of the large ticketing systems (Zendesk, SupportPal, FreshDesk, etc.) allow the ability for an administrator/ticket operator to forward an email they receive in their personal mailbox to the ticketing system, and it will open the ticket "On Behalf" of the user who emailed them. I would like to see this ability in WHMCS for both existing and new customers who may email a staff member directly, instead of using the ticketing system.
This should take the forwarded email and open a new ticket, stripping out the "FWD" information and extracting the "from" email address, just as the other guys do.