How to Merge Two or Multiple Yahoo Email Accounts

If you’re thinking of combining Yahoo email accounts, you’re probably tired of switching between two or more inboxes or you may want to get rid of the multiple email addresses and keep only one.

Unfortunately, Yahoo is yet to offer the option of actually merging email accounts, but, depending on your goals, you may choose one of the following options:

  • Option 1. Copy the emails from the secondary accounts into your primary Yahoo account and then delete the unwanted accounts. You can consider this option if you have multiple Yahoo accounts but want to keep only one email address. This will merge your email from multiple accounts.
  • Option 2. Use Yahoo’s account switcher to access all your accounts from Yahoo Mail without having to log in and out. To view other inboxes, you’ll need to open the email list by clicking your name at the top right of your primary inbox. This will not merge your emails from multiple accounts in one inbox.

Option 1: Merge Yahoo accounts by copying emails into one account

You can copy your emails from secondary Yahoo addresses into your primary account automatically or manually.

We recommend using the automatic option because it is quicker and easier than the manual process and it provides accurate results.

The manual option takes more time, involves installing additional software, and the results may not meet your expectations. But if you have a small account and know how to fix possible issues, you may consider this option as well.

How to copy Yahoo emails into another account automatically using VaultMe

VaultMe is an online application for migrating email from one account into the other. Using VaultMe, you can combine emails from one or several secondary Yahoo accounts with the emails in your primary account. VaultMe works with many other email services, so you can use it to merge any other email accounts that you have, too.

Here’s why we recommend VaultMe for merging Yahoo email accounts:

  • The app provides as perfect an outcome as possible: it accurately copies the formatting, the read/unread status, and attachments of all email messages
  • It copies Yahoo folders so all your email messages from secondary accounts will stay organized in the primary account
  • VaultMe copies emails automatically online so that you can close the browser and even power off your computer after your migration starts and come back later
  • VaultMe takes only a couple of minutes to set up — and works fast
  • VaultMe has exceptional reviews!
If you have any questions about VaultMe, please contact us at We’d be happy to help!

How to copy emails manually using a third-party email app

This method has important limitations which will be described further below. Please consider them carefully before you start.

To copy your Yahoo emails from your secondary accounts into the primary one using this method, you will need to install a third-party email app (such as Thunderbird or Outlook) on your computer.

Here’s how you can copy your emails using the app:

  1. Connect your secondary account to the app.

    Use the following settings to configure the app:

    IMAP/SMTP settings for Yahoo
    Settings for connecting Yahoo to a desktop email app
    If you're using Yahoo Account Key, generate an app password and use it as your account password.
  2. Go to the Import/Export menu and download your email archive in an .mbox file. (The screenshot below has been made in Outlook. The Import/Export menu in other email apps may be different.)
    Step 2 of merging Yahoo accounts manually. Exporting a .pst file
    How to merge Yahoo accounts manually, Step 2: Download your email
  3. Connect your primary Yahoo email account to the app.
  4. Select your primary account and go to the Import/Export menu.
  5. Import the downloaded .mbox file from the secondary Yahoo account to the primary account. This will upload your email archive to the primary account.
  6. If you have multiple Yahoo addresses that you want to merge, repeat the steps above for each of the secondary accounts.

Alternatively, you can connect your secondary and your primary account and then drag and drop emails between them.

Please note that the steps outlined above will make the email from your secondary accounts available in your primary account even if you delete the app after you’ve finished.

But there are some limitations that you should consider before you start:

  • You will need to make sure that you have enough free storage space on your hard drive for temporary copies of your secondary Yahoo inboxes.
  • Depending on the size of your secondary Yahoo accounts, the manual process may take up to several days (sometimes even weeks).
  • Manual migration is notoriously unreliable and some of the files may be lost during the copying process. The accuracy of the export and import may be compromised if power supply and broadband connection are interrupted.
  • The copying process may slow down the work of your computer and increase power consumption.

After you’ve finished copying your emails, you can delete the unneeded Yahoo accounts.

Option 2: Combine Yahoo accounts using the account switcher

Yahoo’s account switcher will make it easier for you to access all your Yahoo accounts from one place. You will be able to switch between the accounts by selecting them from the list. While this will not merge the contents of your accounts, you won’t have to sign in and out each time you need to access your secondary email addresses.

You can add up to 10 addresses using Yahoo’s account switcher.

Here’s how you can set the account switcher:

  1. Sign in to your primary Yahoo account.
  2. Click your profile image and select "Add or Manage accounts".
  3. Click "Add another account".
    Step 3 of setting up Yahoo’s account switcher
    How to merge Yahoo accounts manually, Step 2: Download your email
  4. Sign in to your secondary Yahoo account.


If you wish to make a Yahoo mail merge, first you should consider what you want to achieve. You may want to merge your email from multiple accounts or you may simply need to access all your inboxes from one location.

If you have two Yahoo mail accounts and you want to delete one, you may wish to merge the contents of your Yahoo accounts and get rid of the unwanted one. In this case, you’ll need to migrate email from your secondary accounts to the primary account before you delete the unused account. This can be done automatically using 3rd party migration software or manually using a desktop email app. We recommend that you use VaultMe to merge your email accounts as your automatic option. VaultMe is quick, easy to use, and reliable.

If you want to keep all email addresses and access all accounts from one place, you can set up Yahoo’s account switcher. With the account switcher, you’ll have a list of your email addresses that you will be able to scroll through and select accounts from.

If you have any questions about VaultMe, please contact us at We’d be happy to help!