Logo for O365 webmailEmail and Webmail

All email lives in the cloud at Microsoft Office 365 and is accessible from anywhere.


  • Increased mailbox sizes limits up to 50GB
  • Online archive to store old email up to 100GB
  • Send attachments up to 25MB
  • Unlimited storage in the public cloud

Get Started


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

Tips and Tricks

Office of Information Technology

CU Denver
Lawrence Street Center

1380 Lawrence Street

13th Floor

Denver, CO 80204

CU Anschutz
Education II North

13120 East 19th Avenue

5th Floor

Aurora, CO 80045