This "Mailbox Usage Check" service can help users to check on the usage of their mailbox on our Email Server. Please keep close monitor of your mail folders usage and purge any old emails if necessary, from time to time. If your mailbox has exceeded your assigned quota, it may result in late delivery of any new incoming emails.
| iMail users | HKUST iMail Personal Settings |
| Exchange users (staff users) | How to check your mailbox quota usage? |
| Users with Unix mailbox | How to check your Unix mailbox usage? |