How to Add Another Email Account in Yahoo Mail

To add an existing email account to New Yahoo Mail on a computer, open More options > Settings > Mailboxes, choose Add mailbox under Mailbox list, select the provider, and complete its sign-in and permission prompts. Click Save when you return to Yahoo. You can then select the linked mailbox to read and send its email.

If you want to switch between two separate Yahoo accounts, use your profile > Add or Manage accounts > Add account instead. In the installed Yahoo Mail app, add a Yahoo sign-in through Profile > Manage Accounts > Add Account. These choices sound similar, but they solve different problems.

This guide separates New Yahoo Mail, the older desktop layout, the Yahoo Mail app for iPhone or Android, and Yahoo Mail in a phone browser. The instructions follow Yahoo's current help documentation; account linking has not been tested in a personal Yahoo account. The images are labeled workflow illustrations.

In this guide

• Choose between linking a mailbox, adding a Yahoo sign-in, and creating an address.
• Add a mailbox on a computer, in the Yahoo app, or in a mobile browser.
• Check the connected inbox and sending address.
• Fix missing options and failed authentication.
• Disconnect a mailbox or distinguish aliases and recovery addresses.

Choose the right kind of additional account

Link an existing mailbox when you already have an email address with a provider Yahoo offers, such as Gmail, Outlook, or AOL, and want to access its mail through Yahoo Mail. You must authenticate that account and allow the requested connection. This does not create a new address at that provider.

Add another Yahoo sign-in when you own two independent Yahoo accounts and want to move between them. Each remains its own account. Yahoo documents a browser account switcher that supports up to 10 Yahoo accounts; that limit describes the switcher, rather than a universal limit for every linked mailbox or app.

Create an account first when your desired address does not exist yet. Signing in through Add mailbox cannot register an unavailable or nonexistent address. Finish the provider's account-creation process, verify the account as requested, and confirm you can open its inbox before attempting to add it here.

Use an alias feature only when you want another address belonging to the same underlying account. An alias is an alternate address, rather than a separate account with its own password. Yahoo's older extra-address feature and its disposable-address feature have different availability rules, covered below.

Before you add the account

Have the complete email address ready, including the part after the @ symbol. Know how to sign in to that specific account and access any verification method its provider requires. Being signed in to your main Yahoo account does not prove you can authenticate the second mailbox.

If the second account belongs to work or school, its administrator may control whether another service can access it. Choose the actual provider offered by Yahoo and follow that provider's sign-in screen. Do not assume a personal Outlook option supports every organization's configuration.

Read the permission request before granting access. Connecting a mailbox can let Yahoo work with messages from another account. Confirm that the account shown is the one you intended to add; a browser already signed in to a different Google or Microsoft account can make that choice easy to overlook.

Keep the original provider's inbox available while you connect it. This gives you a place to check whether a message exists at the source when it is missing from Yahoo. If you cannot sign in to a Yahoo account, follow our guide to changing or resetting your Yahoo Mail password before trying to connect it repeatedly.

Add a mailbox in New Yahoo Mail on a computer

These steps follow Yahoo's New Yahoo Mail mailbox management instructions. Use a desktop browser for this route.

1. Open your main Yahoo Mail inbox. Sign in to the Yahoo account where you want to manage the additional mailbox. Check the account shown before changing its mailbox list.
2. Open More options, then select Settings. More options is represented by a three-dot control. Use this New Mail entry point when your layout differs from an older tutorial's settings gear.
3. Choose Mailboxes. In the settings panel, look for Mailbox list, which contains the mailboxes attached to the account. Each entry also stores the name recipients see, which is the field to edit when you need to fix null null in Yahoo Mail.
4. Click Add mailbox under Mailbox list. Yahoo presents its available email providers. Select the provider for the account you already own.
5. Enter the additional email address and click Next. Check the spelling and domain. Yahoo should open a window to authenticate the second account.
6. Complete that account's authentication and permission prompts. Select the correct account if the provider offers a choice. Supply any requested verification or additional information, and review the access being requested before authorizing it.
7. Return to Yahoo and click Save. Complete the Yahoo-side finish step rather than stopping when the provider accepts your password. Then check for the mailbox in Yahoo's mailbox controls.

The sign-in window may differ by provider and account security settings. There is no single universal password-and-code sequence. A canceled permission request or unfinished verification can leave the mailbox unconnected even when the email address is correct.

If you still have the older desktop layout

Yahoo maintains a separate guide for the old desktop version. If your inbox has that layout, use Settings gear > More Settings > Mailboxes > Add mailbox.

Select the provider, enter the other address, and click Next. Complete the prompts in the pop-up window. The older procedure allows an optional name and description and finishes with Done. Its linked accounts are listed below Compose; click the account you want to view or use for sending.

Do not search indefinitely for Done in New Yahoo Mail, where the current procedure finishes with Save. Likewise, a video showing a gear and More Settings is describing the older entry point. Match the procedure to the controls actually present in your inbox.

Add and switch between separate Yahoo accounts

For two independent Yahoo accounts, Yahoo's account-switching instructions provide a separate browser route:

1. Sign in to one of your Yahoo accounts. Start with the account you normally use.
2. Click or hover over your profile image. Choose Add or Manage accounts from the profile menu.
3. Click Add account. This opens the sign-in process for another account.
4. Sign in with the different, existing Yahoo account. Complete its identity checks if requested. Entering your first account again will not add a distinct second account.
5. Use the profile menu to select the account you want. If the menu lists only one account, finish adding the second account before expecting it to appear there.

This approach lets you change Yahoo account sessions without signing out and entering credentials every time. It is distinct from selecting a third-party mailbox inside New Yahoo Mail. If Yahoo is not offered in a particular Add mailbox list, use the documented Yahoo account-switching route rather than choosing an unrelated provider.

Add another account in the Yahoo Mail app

The installed Yahoo Mail app has separate controls for Yahoo sign-ins and linked provider mailboxes. Yahoo's app instructions cover both iOS and Android.

Add an existing Yahoo account to the app

1. Open Yahoo Mail and tap the Profile icon. Check which account is currently active.
2. Tap Manage Accounts. This is the account-management route, rather than Mailboxes in desktop settings.
3. Tap Add Account. Choose the additional Yahoo account you want to sign in to.
4. Enter its email address and password. Follow any further sign-in prompts shown for that account, then confirm it appears in the app's account controls.

An older forum answer saying the Yahoo app can use only one Yahoo username does not match Yahoo's current documentation. Multiple Yahoo accounts are supported. That does not mean two aliases belonging to one account should be added as two independent sign-ins.

Link a mailbox from another provider

1. Tap the Profile icon in Yahoo Mail. Open the menu for the account where you want the connected mailbox.
2. Tap Add another mailbox. Select the email provider that matches the existing address.
3. Tap Allow if Yahoo presents that confirmation. Review the access request before continuing; this button is conditional, rather than a required screen for every provider.
4. Sign in to the additional account if prompted. Check the account identity, then follow the provider's authorization and verification screens until the connection finishes.
5. Return to the app and inspect the available mailbox/account choices. Select the added mailbox and check that its messages are accessible. Use the verification checks below before relying on it for sending.

If you are using Apple's built-in Mail app, these Yahoo app menus will not appear there. Our Yahoo Mail troubleshooting guide for iPhone helps distinguish a provider sign-in problem from an iPhone Mail setup problem.

Add a mailbox through a mobile web browser

Opening Yahoo Mail in Safari or Chrome on a phone is different from opening the installed Yahoo Mail app. Yahoo's mobile web procedure uses this route:

1. Open Yahoo Mail in your phone's browser. Sign in to the Yahoo account where you want the linked mailbox.
2. Tap the Menu icon, then Settings. Use the mobile browser's Yahoo controls, rather than the phone's system settings.
3. Tap Manage Accounts, then Add Mailbox. Select a provider offered in that list.
4. Enter the other account's email address and password as requested. Follow its on-screen prompts to allow the connection, then return to Yahoo to inspect the linked account.

If those mobile web controls do not match your experience, identify whether you have been redirected into the app. Use the matching app instructions, or open the desktop browser workflow on a computer. Do not combine steps from the three interfaces into a single sequence.

Check the inbox and sending address

In New Yahoo Mail, click the Mailbox switcher in the lower-left corner of the inbox and select the mailbox you want to view. Yahoo says the page should refresh automatically. The older desktop version instead lists linked accounts below Compose.

Use a small receive-and-send check after adding an account:

1. Select the added mailbox and inspect a recognizable message. Compare it with the original provider's inbox if you are unsure whether Yahoo is displaying the right account.
2. Send a short test message to that address from another account you control. Check the original inbox and the selected Yahoo mailbox. Avoid sending private information as a test.
3. Compose a reply or new message and inspect From before sending. Select the intended sending address if a choice is available. Check the address, rather than relying on a similar display name.
4. Read the received test message's sender and reply destination. This catches a wrong From choice or a reply-to setting that directs responses elsewhere.

For example, suppose you add an existing Outlook mailbox to your personal Yahoo inbox. Choose the Outlook mailbox to inspect its messages, and verify the From address before replying to an Outlook conversation. Adding it does not mean every new message you compose will automatically use Outlook.

New Yahoo Mail also lets you edit a selected mailbox's name, description, reply-to address, or signature through More options > Settings > Mailboxes > Mailbox list, then Save. A description can help distinguish accounts. A reply-to address controls where replies are directed; changing it does not register a new email address or change the account you authenticated.

Fix missing options or a connection that does not finish

Add mailbox or the provider is missing

First match your interface to the relevant section: New Mail desktop, old desktop, installed app, or mobile browser. Manage Accounts in an app is not the same panel as desktop Mailboxes.

Select only a provider Yahoo actually offers. The appearance of Gmail, Outlook, or AOL in Yahoo's documentation does not establish support for every custom-domain mailbox. If your provider is absent, check that provider's supported connection methods or use its own app or web inbox. Choosing a different provider or repeatedly following an app download prompt does not establish compatibility.

The authentication window never appears or keeps returning

The desktop procedure expects an authentication pop-up after Next. If your browser reports that it blocked a pop-up, review that notice and allow the required window for the Yahoo page you intended to use. Continue only on the expected provider's sign-in page; do not bypass a browser security warning.

If the window opens but returns without adding the account, check whether you canceled access, selected the wrong saved account, or left a verification step incomplete. Finish the requested authorization and Yahoo's Save or older Done step. A provider accepting your sign-in is only part of completing the connection.

The password works elsewhere but linking fails

Confirm you are entering credentials for the added account, rather than the main Yahoo account. Open the second provider's web inbox directly and resolve any sign-in or verification problem there first. For a managed account, ask the administrator whether third-party access is allowed.

Yahoo's app documentation advises deleting and retrying an account connection when incorrect server details were entered and cannot be changed, and consulting the administrator about server settings or password issues. Before removing anything, confirm that you can access the original account and preserve important drafts or local-only material. Remove only the failed connection using the appropriate route below.

Do not paste a mail-client app password into an unrelated browser authorization screen as a blanket fix. The correct sign-in method depends on the provider and the connection Yahoo presents. Repeating incorrect passwords also makes it harder to diagnose an account lock or identity-check problem.

Messages appear on the website but not on the phone

Confirm that the phone is viewing the same mailbox and that you are checking the intended folder. Then identify the phone app: Yahoo Mail and Apple Mail maintain their own account configurations. A successful browser connection is not proof that a separately configured iPhone Mail account has been updated.

If a password recently changed, complete the affected app's requested sign-in again. Check your original provider's inbox before removing a working account merely because one message is absent from another view. There is no guaranteed universal synchronization time for every provider connection.

Remove or unlink an account you added

Confirm the address before removing it. Disconnecting a mailbox from Yahoo, signing out of an app, deleting messages, deleting an alias, and closing an account are different actions. Choose the connection-management control, and read any confirmation shown.

In New Yahoo Mail on a computer, open More options > Settings > Mailboxes. Under Mailbox list, select the account you want to disconnect and click Remove mailbox. In the older desktop version, use Settings > More Settings > Mailboxes, select the account, and click Remove mailbox twice as documented.

For a linked provider mailbox in the Yahoo app, use Profile > Settings > Manage mailboxes, tap X, then Remove. Confirm with Remove on iOS or OK on Android. To sign out of a Yahoo account in the app, the separate route is Profile > Manage Accounts > Edit, then Remove beside that account and Remove again.

In the mobile web version, use Menu > Settings > Manage Accounts, tap Remove beside the linked account, and tap Remove again. These routes remove the connection or app sign-in described by Yahoo; they are not instructions to close the provider account.

If you want the mailbox back later, repeat the appropriate add-account procedure and authenticate it again. Re-adding depends on continued access to that account and the provider being available. Do not delete a legacy Yahoo alias in an attempt to fix a failed independent-account connection.

Frequently asked questions

Can I create a new Yahoo address with Add mailbox?

Add mailbox connects an existing address. If you need a brand-new account, create it through Yahoo's account-registration process first, then add the resulting account through the appropriate Yahoo sign-in route. Do not assume that a missing alias control can be restored by changing your birthday or other identity information.

Will the two accounts have one password and one inbox?

Two independent accounts retain their own sign-in details. Yahoo can provide access to linked mailboxes and account switching, but that is different from turning their addresses into aliases. Select the desired mailbox and verify the sending identity.

Yahoo's legacy extra email address documentation describes an extra address that shares one password and a centralized inbox. Yahoo says new extra email addresses can no longer be created, and not all existing ones can be deleted. Removing one is not a way to create a replacement.

What if my second address is an alias?

An alias belongs to the underlying account. For an existing Yahoo extra address, Yahoo documents choosing that address in the From menu while composing. Do not treat it as an independent account merely because it has a different address. This distinction also matters when another mail app reports that the account is already present.

Are disposable addresses another kind of account?

No. Yahoo's disposable-address documentation describes addresses in the form nickname-keyword@yahoo.com, with received messages going to the main account's inbox. Availability depends on locale, subscription, or an existing disposable-address setup. If the option is missing, Yahoo says it is not currently available for that account. The permanent nickname cannot be changed once set, so review that separate feature before creating one.

Does adding a recovery email also connect its inbox?

No. Yahoo distinguishes a recovery address from an extra email address. A recovery email helps you regain account access, such as receiving a verification message after forgetting a password. It is not the Add mailbox connection for reading that address's everyday email in Yahoo.

Will my vacation reply apply to every account?

Do not assume a Yahoo vacation response controls a linked provider's settings. Review the account where the automatic response is configured and verify the address receiving the message. Our guide to setting an out-of-office reply in Yahoo Mail explains Yahoo's controls; check the other provider separately when appropriate.

After connecting the account, select its mailbox and run the small receiving-and-sending check. Once both the inbox and From address match your intended account, you can use the connection with fewer surprises.