Microsoft Outlook Email outlook image

All email lives in the cloud at Microsoft 365 and is accessible from anywhere. Benefits of using Microsoft 365 Outlook include increased mailbox sizes limits up to 50GB, online archive to store old email up to 100GB, capability to send attachments up to 25MB and unlimited storage in the public cloud. 

In addition, Microsoft O365 Outlook is the only university-supported email client and is highly recommended for accessing your University of Colorado Denver | Anschutz Medical Campus email. In addition, OIT recommends installing the O365 Outlook app on your mobile device from the iOS and Android App store. Once you add the Outlook app to your phone, you can go to Settings and add other personal accounts such as Gmail.

MFA and Microsoft Outlook

DuoThe university now uses Duo to provide additional authentication - to prove you are who you say you are - before accessing Outlook from off-campus. Use the Microsoft 365 Outlook desktop or mobile application for easiest access to your email. Remember that after MFA is implemented, if you are accessing Outlook from off-campus or your mobile phone, you will be prompted for MFA through Duo about every 90 days as long as you are using the Outlook application.

Please note: If you use a web browser such as Chrome or Internet Explorer to access web mail instead of the Outlook application, you will be challenged for MFA every time you open a new browser session. For convenience, OIT suggests installing the Outlook application on your mobile and personal devices so you're only prompted to authenticate about every 90 days.

Next steps after installing the Outlook app on your computing devices including your phones, laptops, desktops and tablets:

  • Register for Duo from your laptop or desktop computer. (If you already installed and registered for Duo as a VPN or VDI user, you don’t have to register again.)

Stay Secure

Sending an email with sensitive data? Learn how to encrypt email.

Sending Bulk Email

The Office of Information Technology maintains a bulk mailing system, commonly referred to as a list server or “ListServ.” This system is designed for sending emails to more than 500 unique users.

Please Note: If you don’t use a listserv or email distribution lists to send emails with more than 500 recipients in a day, the email will be flagged by security and your account will be disabled.

Subscribe or unsubscribe from ListServ emails.

Email tips and tricks: