In the past, we've been generously supported by Information Services and been able to grant an extra 100 MBs of email capacity to those who have supported the campaign. It's been a popular incentive, a temporary “get out of (email) jail” card that many have appreciated.
This year we've dropped the email incentive, because IS is currently planning to migrate users to Office 365 Email, which will increase each user's storage capacity to 50 GBs. We felt it was disingenuous to offer an incentive which in the next few months would have virtually no value. You can read a little more about Office 365 at the
September TechTalk.