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Starting June 15, 2021, Cornell G Suite Will Use Cornell Single Sign On

On June 15, 2021, Cornell G Suite users will be transitioned to log in using Cornell Single Sign-On (Shibboleth) instead of using the Google sign-in process. This change will affect student, employee, and alumni users of Cornell G Suite (formerly CMail).

A series of targeted communications will be going out to the affected user groups starting this week and continuing through the June transition date to prepare users for the change.

This project is part of Cornell’s ongoing effort to strengthen the security of email and other IT services. The specific timing of the transition is designed to move the project along without overly impacting student users during the Spring term, or alumni users during their reunion season.

Details for Affected User Groups


After the transition, G Suite for Students users will be required to authenticate with Two-Step Login when they log in. Students should already be familiar with using Two-Step Login (Duo) to authenticate when logging in to a range of campus IT services including Student Center, Canvas, and Zoom.

Non-Students with G Suite

Faculty and staff users of Cornell G Suite are currently required to use Google 2-Step Verification. After the transition to Shibboleth, they will be required to use Two-Step Login when signing into G Suite.


After the transition, alumni Cornell G Suite users will sign in using Cornell Single Sign On. Alumni who had enabled Google's 2-Step Verification will no longer have access to it after the transition to Cornell sign on. Alumni are not currently required to use Two-Step Login, but those who would like to regain or establish two-factor authentication may self-enroll in Two-Step Login. For details, users should visit Two-Step Login and in particular review in particular the links under the heading "First Time Setup" in the sidebar menu.

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