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Change the password with the service that owns your email address, then separately review its device sessions and connected apps. Gmail, Yahoo Mail, Apple Account, Microsoft 365, and work or IMAP accounts use different controls; changing a password does not guarantee that every device or app is signed out.
Before you start: identify who owns the account
An email app is not always the service that controls your password. Outlook for Android and iOS, for example, is a mail client: after a password changes, it prompts for the new one, but the password itself belongs to the email provider or, for some work accounts, the organization’s IT team. See Microsoft’s guidance for updating an email account password.
Identify whether the address is a personal Google, Yahoo, Apple, or Microsoft account, or an account managed by your employer or another provider. Use that service’s official website or app. If you are locked out, use its account-recovery process rather than following an unexpected password-reset link in a message. Yahoo, for example, directs users to its Sign-in Helper and recovery email or phone.
Change your password and revoke access
Use the provider-specific password instructions below, then open its security or device settings and sign out unfamiliar or unneeded sessions. Those are separate actions: the available official guidance does not establish that a password change universally revokes every session, mail app, or access token. Also inspect third-party app access where the provider offers a separate control.
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Gmail and Google Account
To sign out remotely, open Gmail, go to Manage your Google Account, choose Security, then Manage all devices. Select a device or session and choose Sign out. Review the list and repeat for each session you want to end. Google notes that a device can have multiple sessions, and says: “To ensure there’s no account access from a device, you must sign out of all sessions on that device individually.” Read Google’s Gmail sign-out instructions.
Removing a Google account from the Gmail app on a phone or tablet is a local device action; it is not the same as remotely signing out sessions through the account’s device list.
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Yahoo Mail and Yahoo Account
On the web, open Yahoo Account security, find Password under Ways of signing in, enter the new password, and continue. In supported Yahoo mobile apps, the path is the profile icon, then Manage Accounts (in Yahoo Mail), Account Info or Account, Security, and Change password. If the app path is unavailable, Yahoo recommends using a mobile browser; Account Key can also affect whether a password option appears. For a forgotten password, use the Sign-in Helper and a recovery contact. Details are in Yahoo’s password reset and change instructions.
For sessions, open Account security, review current sign-ins, select a device, and sign it out. For an external app using an app password, go to External connections, find that app password, and delete it to remove that app’s access. These are distinct controls. Follow Yahoo’s steps to find and remove unusual account activity.
Apple Account used with iCloud Mail
Apple’s password instructions concern the Apple Account, not an iCloud Mail-only password setting. On a trusted device, changing the Apple Account password can offer a choice between Remove Other Devices, which requires those devices to sign in again, and Keep All Devices Signed In. A security delay may apply in some cases. Follow Apple’s Apple Account password instructions and read the choice shown on your device before confirming.
Outlook, Microsoft 365, work, and IMAP accounts
Outlook mobile asks for the latest password after it changes; update the credential for the underlying provider rather than treating Outlook as the account owner. Microsoft’s instructions link to different password routes for Outlook.com, Live or Hotmail, Microsoft 365, Yahoo, Gmail, and iCloud. A Microsoft 365 self-service reset works only if the organization allows it. If it does not, contact IT; for on-premises Exchange, Microsoft also directs users to IT, and for IMAP, to the mail provider.
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There is no single sign-out-everywhere procedure established here for personal Microsoft accounts, Microsoft 365 tenants, on-premises Exchange, and arbitrary IMAP providers. Use the account’s official security page or ask the organization’s administrator which sessions and connected apps can be revoked. See Microsoft’s password update guidance.
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After a suspicious sign-in
If you changed the password because someone may have accessed the account, review more than the password. Yahoo’s account-security guidance recommends a strong password not reused elsewhere, two-step verification, and current recovery contact details. Check recent sign-in activity, remove recovery email addresses or phone numbers you do not recognize, and revoke unfamiliar app passwords or connections. Yahoo also advises deleting app passwords you do not recognize after a security-related password change. Its guidance is at Secure your Yahoo account and Find and remove unusual activity.
Yahoo’s warning is straightforward: “Yahoo never asks for your password in emails or phone calls.” More generally, if this email account is used to reset passwords for other services, consider securing those accounts too; that is a practical precaution, not a provider-specific revocation rule.
What to expect after signing out
The controls differ according to the account owner and the kind of access involved. A browser or device session may be listed separately from an app password or other external connection, and a managed work account may be governed by organization policy. The cited provider instructions do not establish a universal revocation timeline or guarantee that every mail client and managed device will lose access immediately. Check the provider’s session and connection controls, and follow any work-account guidance from IT.
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