Email accounts are created automatically for every UIS student and employee when the campus NetID is created. Microsoft Outlook is the most widely used email client on campus and is installed on nearly every office computer, both Windows and macOS, available anywhere through online, and mobile devices.

Information about UIS Email Accounts

Size & Limit

  • 100 GB Storage
  • Student accounts are limited to 200 email recipients a day and up to 100 an hour
    • A 24 hour block will be placed on any student account who exceeds this sending limit
    • Please reach out to ITS Client Services if there is a need to bypass this limit
  • Employee accounts are limited to 10,000 email recipients a day and up to 1,000 an hour [Begins February 28, 2024]
    • A 24 hour block will be placed on any student account who exceeds this sending limit
    • Please reach out to ITS Client Services if there is a need to bypass this limit
    • Distribution Lists do not count towards this limit. For example, if you send an email to the Official Employee DL (which contains over 1000 recipients), your account will not be locked


  • Students: 3 semesters after their last semester of enrollment (see User Account Lifecycle for NetIDsfor more details)
  • Faculty: 60-90 days after their last working day
  • Retiree: can keep their email if desired

Mailbox management

  • Cleaning up deleted items / sent items folders
    • If you delete items that you wanted to keep, we can not restore them. We back up the Exchange database as a whole, as a protection against disaster. It’s impractical to restore an entire Exchange database to restore a single mailbox. The good news is that Exchange doesn’t really delete mail items until 30 days after you’ve told it to. It first keeps deleted items in a special folder called Deleted Items. After the Deleted Items folder is emptied, items are held in a dumpster for 30 days, and you can usually find missing items there.
    • Recovering Deleted Items in Outlook –
      1. Click on the Folder tab then Recover Deleted Items
      2. Click the message you want to recover, and then click Recover Selected Items
    • Recovering Deleted Items in Webmail –
      1. In your email folder list, right-click Deleted Items, and then click Recover deleted items
      2. Select the item you want, and then select Recover
  • Create and use Outlook Personal folders [.pst files]
  • Move attachments to cloud services [Box]

To learn more about Mailbox Management please review the Outlook Folder Management information.

Best Practices

  • Do not give out your password – EVER
  • Do not click on links or download files from people you do not know or do not have a reason to be receiving things from
  • Avoid 16 digit numbers. The mail system will think these numbers are credit card numbers and refuse to send the mail
  • When sending mail off campus, keep the number of recipients per messages low. Most spam filters will start to look suspiciously at mail messages that have over 200 recipients
  • Avoid spamming: Spam Filter limits outbound mail to 100 recipients per 30 minutes from any one user. If it is over that, it will rate control the mail – meaning it sends it out very slowly

For more information about spam at UIS and email abuse please visit the Email Abuse page.

How to get people to read your email

  • Use the appropriate distribution group
  • Use a department address rather than your own (people will read and email from long before one from


Please contact the ITS Client Services Help Desk for any questions about Email at UI

Toll Free: (877) 847-0443

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