Please log in to Zoho people with Supper Admin credentials. Please follow the steps below.
1. Please go the "Settings" top right corner of the page and navigate to " Marketplace" and click on it.
2. A new screen will open. Under "Zoho" go to "Zoho directory" click on "Configure" .
3. A new pop up will open. Please click on "View" click on view in sign-in activity.
4. Please go to Admin Panel >> Users >> Select the particular employee >> Manage Email Address and click on it
5, A screen will open. Under "Manage Email Address" Add email ID. If the domain is already verified with Zoho People, select it from the drop-down and fill in the new email ID (If the domain is not verified, select Other from the drop-down and fill in the email) click on the Star the added email to make it the default/primary email address.