Change your preferred email address for notifications
TFS 2017 | TFS 2015
You can change your preferred email address for notifications from your organization preferences profile page. Notifications are sent by default to the preferred email address for your organization profile. It's typically the email address you signed into Azure DevOps with.
To change your preferred email address, open your organization menu and select My profile.
From your profile and information page, select Edit profile.
Update the address and select Save changes.
For additional settings, see Set your preferences.