All e-mail addressed to you is initially stored in your system mailbox on Colby’s mail server, a location usually referred to as the INBOX. As of July 2007, the storage quota for the INBOX and all other email folders on the Mirapoint email system is one Gigbyte per account. Your quota will NOT be raised if you hit it --clean up old email.
Saving large attachments (e.g. JPEG pictures) will consume your quota very quickly. Outbound email is also saved in "Sent" folders and can chew up your quota over time. If you don’t like quotas, then use POP and store your stuff on your personal computer.