There are some points you need to consider before you delete your Yahoo account.
There are some points you need to consider before you delete your Yahoo account.
Backup Emails & Attachments
You need to backup your Yahoo emails for good. You can use those details in future for your work/personal matters if you have taken the backup. Just forward the important emails to your other email address.
Export Contacts
You might have important contacts so before losing them you should take a backup before deleting your Yahoo account.
Ensure Access to Yahoo Products
Before you delete your Yahoo account change the access email address of your subscribed products or services. So you could access them in the future as well.
Remove Third-Party Access
You may have used your Yahoo email address on many third-party websites for logging in then you can't afford to skip this step. Delete/change the email address with a secondary email before you lose.
1) Cancelling your Yahoo account permanently is pretty simple. You first need to go to the Yahoo Account Delete page.
2) Once you go to the link mentioned above, you will be asked to Sign in using your existing id and password.
3) It is highly likely that you will be required to enter a CAPTCHA to make sure you are a human and not a bot.
4) Once you are signed in, you will see two options: Terminate This Account or Return to Account Information.
5) Click the Terminate This Account.
Congratz! You just deleted your Yahoo account.
But you can recover your account for next 90 days after deleting it. After 90 days, it will no longer be in Yahoo's database or servers. Gone!
Source: How to Permanently Delete Your Yahoo Account
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