The email for your SyncPlan.Me account is separate from your Connected Calendar. You can use your work email for your SyncPlan.Me account, but the work email and login email aren’t connected in any way.
Account Questions
Change your account email
You can change the email address you use to log into your account in Account Settings.
When you request the email change, you’ll need to confirm the change in both your original and new email.
If you no longer have access to your old email, please contact Support.