How do I remove Emails that i previously signed in on Edge and different Microsoft apps on Mac?

On macOS, Microsoft Edge and other Microsoft apps can share identity information, and Edge can also pick up identities from the OS and from cookies. To prevent previously used email accounts from reappearing when signing in again, remove the Edge profile and clear identity-related data.

Use these steps in Edge on macOS:

1. Open Microsoft Edge.
2. Go to Settings and more (⋯) > Settings > Profiles.
3. For each profile that shows an old account, either:
   • Select the profile and choose Sign out, or
   • Remove the profile entirely (this deletes profile data from the device).
4. Still in Settings, go to Privacy, search, and services.
5. Under Clear browsing data, clear cookies and other site data so that saved sign-in state (for example on Bing.com and other Microsoft sites) is removed.

Key points from the Edge behavior on macOS:

• Identities are shared between Microsoft apps on macOS, so signing into one app can offer that identity to Edge and vice versa.
• Edge may automatically sign in or offer accounts based on identities it detects from the OS or from previous sign-ins.
• To prevent any identity from being associated with Edge, remove the Edge profile or sign out of Edge. Deleting the profile removes the data from the device but does not delete any previously synced cloud data.

If automatic sign-in to Microsoft sites such as Bing is still occurring after this, sign out on those sites directly (for example, on Bing.com use the account menu > Sign out) and then clear cookies again in Edge.

References:

• User data and privacy in Microsoft Edge
• Sign out of Microsoft Edge