Fixing a disconnected Google account

Last updated: May 4, 2026

Google periodically revokes third-party access to accounts — particularly when unusual activity is detected, security settings change, or OAuth tokens expire. When this happens, the account shows a disconnected status in Stamina and emails from that account stop sending.

Why accounts get disconnected

  • Sign-in from a new device or location triggered a security alert

  • High sending volume flagged as unusual activity

  • OAuth token expired (typically after extended inactivity)

  • 2-Step Verification settings changed on the Google account

  • The App Password was revoked or the Google account password was changed

How to reconnect

  1. Go to Email Accounts.

  2. Find the disconnected account — it will show a red error badge.

  3. Click Reconnect.

  4. Follow the OAuth or App Password flow to re-authorize:

    • OAuth: Sign in with Google and grant permissions again

    • App Password: Generate a new App Password in Google Account settings and enter it in Stamina

  5. Once reconnected, the account status returns to active and sending resumes on the next campaign cycle.

If reconnection keeps failing

  • Verify that 2-Step Verification is still enabled on the Google account (required for App Passwords)

  • Generate a brand new App Password — existing ones may have been invalidated if the account password changed

  • For OAuth, check that domain-wide delegation is still active in Google Admin Console

  • Contact support@stamina.io if the issue persists after trying the above