The fastest way to block someone in Yahoo Mail

Open the email from the sender you want to block. Click the three dots (more actions menu) in the top right of the email. Select Block sender from the dropdown. Yahoo Mail will move that sender's future emails to spam automatically, and you will not see notifications for them.

If you have already deleted the email, you can still block the address. Go to your Spam folder, find any email from that sender, open it, and use the same three-dot menu to block them. The block takes effect when ready for new messages.

Once you block someone, Yahoo Mail keeps a list of blocked addresses in your account settings. You can remove a block at any time if you change your mind, and the sender will not know they were blocked.

Key Takeaways

  • Click the three-dot menu on any email and select Block sender to send that address to spam automatically.
  • Blocked emails go to your spam folder, and you will not receive notifications about them.
  • You can block addresses even after deleting the original email by finding them in your Spam folder first.
  • Your blocked senders list lives in Settings, and you can unblock anyone at any time without the sender knowing.
  • Blocking works on the web version of Yahoo Mail and on the Yahoo Mail mobile app with the same steps.

Where to find your blocked senders list

To see everyone you have blocked, log into Yahoo Mail on the web. Click the gear icon in the top right corner and select Settings. In the left sidebar, click Security and privacy. Scroll down to find Blocked addresses.

This page shows every address you have blocked. You can add new addresses manually by typing them into the text field and clicking Add. You can also remove any block by clicking the X next to that sender's address. Removing a block means their emails will go to your inbox again instead of spam.

Blocking on the Yahoo Mail mobile app

The process on iPhone or Android is nearly identical to the web version. Open the email you want to block, tap the three dots in the top right corner, and select Block sender. The app will confirm the block and move future emails from that address to spam.

To view your blocked list on mobile, tap the menu icon (three horizontal lines) at the bottom of the screen. Scroll down and tap Settings. Look for Blocked addresses under the Security section. You can add or remove blocks from this screen the same way you do on the web.

What happens when you block someone

When you block an address, Yahoo Mail automatically sends all future emails from that sender to your spam folder. You will not see a notification when they send you a message, and the email will not appear in your inbox. The sender does not receive any notification that they have been blocked — from their perspective, they straightforward will not know whether you read their message.

Blocked emails stay in your spam folder for 30 days before Yahoo Mail deletes them. If you want to keep a record of blocked messages, you can move them to another folder before the 30 days are up. After you unblock someone, their emails will go back to your inbox as normal.

Blocking email addresses that look similar to real ones

Scammers often use addresses that look almost identical to legitimate senders — for example, "paypa1.com" instead of "paypal.com" or "amaz0n.com" instead of "amazon.com". If you receive a suspicious email claiming to be from a company you use, do not click any links or read attachments. Instead, block the address and report it to Yahoo Mail.

To report a suspicious email, open it and click the three-dot menu. Select Report phishing or Report spam depending on what the email is doing. This helps Yahoo Mail improve its spam filters for everyone. You can block and report the same email — both actions work together.

When blocking is not enough

If someone is sending you threatening messages, harassing you repeatedly, or you believe they are committing fraud, blocking alone may not be sufficient. Save copies of the emails (you can forward them to yourself or read them), and consider reporting the behavior to law enforcement or the Federal Trade Commission at reportfraud.ftc.gov if it involves financial scams.

If the harassment is happening through multiple email addresses, you may want to create a new email address and share it only with people you trust. Yahoo Mail's block feature works one address at a time, so blocking dozens of accounts from the same person becomes tedious. A fresh address is sometimes the more practical solution.

Frequently Asked Questions

Can I block an entire domain instead of just one email address?

Yahoo Mail does not have a built-in feature to block all emails from a domain (like all addresses ending in @example.com). You can only block individual email addresses. If you are receiving spam from many addresses on the same domain, you may want to use Yahoo Mail's filters to automatically delete or move emails from that domain to spam instead.

Will the person I blocked know I blocked them?

No. The sender will not receive any notification that you blocked them. From their perspective, they sent you an email and will not know whether you read it, ignored it, or blocked it. They may eventually notice you are not responding, but Yahoo Mail does not tell them the reason.

Can I unblock someone and then block them again?

Yes. You can unblock and reblock the same address as many times as you want. There is no limit to how many times you can change your mind. straightforward go to Settings, find the address in your Blocked addresses list, and click the X to unblock. To block them again later, use the three-dot menu on any email from that sender.

What if I block someone by mistake?

Go to Settings, click Security and privacy, and find Blocked addresses. Locate the address you blocked by mistake and click the X next to it to remove the block. Their emails will go back to your inbox starting with the next message they send. Any emails they sent while blocked are still in your spam folder.

Do blocked emails take up space in my Yahoo Mail account?

Blocked emails in your spam folder count toward your storage limit, just like emails in any other folder. Yahoo Mail gives you 15 GB of free storage shared across Mail, Photos, and other services. If you want to free up space, you can permanently delete emails from your spam folder instead of waiting for the 30-day automatic deletion.