Email Compatibility

Not all email systems are compatible with Duo. You’ll find a list of supported email clients below.

To find out which version of Outlook is installed locally on your Windows or Mac computer, do the following: In Outlook, click File. Click Office Account (or "Help" if you don't see Office Account). Under Product Information, locate the version and build number.

Client (email program)	Compatible with Duo	Notes
Outlook online 365.ucdavis.edu	Yes	Enroll in Duo
Windows Outlook 2016, version 16.0	Yes	Enroll in Duo
Windows Outlook 2013, version 15.0	Not compatible. Upgrade required.	Upgrade Office
Windows Outlook 2010, version 14.0	Not compatible. Upgrade required.	Upgrade Office
Mac Outlook 2013, version 15.0 & above	Yes	Enroll in Duo
Mac Outlook 2011, version 14.0	Not compatible. Upgrade required.	Upgrade Office
Mac Outlook 2010, version 14.0	Not compatible. Upgrade required.	Upgrade Office
iPhone Outlook app	Yes	Enroll in Duo
Android Outlook app	Yes	Enroll in Duo
iPhone Apple mail (built in mail app) on iOS 11 and later	Yes	After enrolling in Duo you MUST delete and re-add your email profile, see KB0000159. http://kb.ucdavis.edu/?id=0159
iPhone Apple mail (built in mail app) on iOS 10 and earlier	No	Download the iPhone Outlook app, or upgrade your device
Android built in mail app	No	Download the Android Outlook app
Apple Mail OS 10.14 and later	Yes	Enroll in Duo
Apple Mail OS 10.13 and earlier	No	Either upgrade the OS or consider using Outlook online 365.ucdavis.edu

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