Ability for automatic issue assignment when issues are logged via e-mail.

We use JIRA to run our IT Help Desk and have configured an e-mail address to which employees can send IT requests/log help tickets. It would be very beneficial if JIRA could automatically assign issues to either a component or role (workflow plugin, should we choose to install it) when issues are created via e-mail. The problem we are experiencing is that issues are frequently neglected, or "fall through the cracks," so to speak, because they are not automatically assigned to specific individuals who are capable of resolving them.