Unfortunately we don’t have the resources of Google to allot additional space for all who ask. We encourage people to manage their email by removing or archiving.
Here are instructions on how to create a storage folder in Outlook 2010 for Windows, to which one can move messages out of the quota space but still have them available in outlook.
Here’s a good resource for Mac Outlook 2011. These two methods demand minimal attention to filing and decision-making.
Please contact or visit the ITS Helpdesk if you would like assistance with archiving your MIIS email.