Block a sender in Yahoo Mail in three steps

To block an email address in Yahoo Mail, open any message from that sender, click the three-dot menu icon in the top right, and select Block. Yahoo will then move all future messages from that address to your Spam folder automatically. You can also block a sender without opening their message by right-clicking on their name in your inbox and choosing Block from the menu.

Once you block someone, Yahoo keeps a list of blocked senders. You can view, add to, or remove addresses from this list anytime through your account settings. Blocking does not delete messages already in your inbox — it only stops new ones from reaching you.

Key Takeaways

  • Blocked senders' messages go to your Spam folder, not deleted, so you can review them later if needed.
  • You can block a sender from any of their messages by clicking the three-dot menu and selecting Block.
  • Yahoo stores your blocked list in account settings, where you can add addresses manually or remove blocks anytime.
  • Blocking works across all Yahoo Mail devices and apps once you set it on your account.

Block a sender from an open message

The fastest way to block someone is from a message they sent you. Open any email from that sender, then look for the three-dot menu icon (sometimes called "More actions") in the top right corner of the message. Click it and select Block from the dropdown menu.

Yahoo will ask you to confirm. Click Block again to finish. From that moment on, all messages from that address will skip your inbox and land in Spam instead. If the sender uses multiple email addresses, you will need to block each one separately.

Block a sender from your inbox without opening their message

You do not have to open a message to block the sender. In your inbox list, right-click on the sender's name or the message subject line. A menu will appear with the option to Block. Click it, and Yahoo will confirm the block.

This method is useful when you want to block someone quickly without reading their message. The same rule applies: if they send from multiple addresses, you will need to block each address individually.

View and manage your blocked senders list

Yahoo keeps a record of everyone you have blocked. To see this list, click your account icon (usually your initials or a profile picture) in the top right corner of Yahoo Mail. Select Account info, then look for Security and privacy or Privacy in the left menu. Find the section labeled Blocked users or Blocked senders.

From this page, you can add new addresses to your blocked list by typing them in, or remove a block by clicking the X or trash icon next to a sender's address. Changes take effect when ready across all your devices.

What happens to messages from blocked senders

When you block someone, their messages do not disappear — they go to your Spam folder instead. This means you can still find and read them if you change your mind or need to review them later. Yahoo does not permanently delete blocked messages unless you manually delete them from Spam.

If a blocked sender creates a new email address and contacts you again, their messages will come through normally because the new address is not on your blocked list. You would need to block the new address separately.

Unblock a sender if you change your mind

To unblock someone, go back to your blocked senders list through Account info > Security and privacy > Blocked users. Find the address you want to unblock and click the X or delete icon next to it. Confirm the action when Yahoo asks.

Once unblocked, messages from that sender will return to your inbox normally. Any messages they sent while blocked will still be in your Spam folder, but new messages will arrive in your inbox going forward.

Frequently Asked Questions

Can a blocked sender tell that I blocked them?

No. When you block someone in Yahoo Mail, they receive no notification. Their messages straightforward fail to reach your inbox, and they have no way of knowing whether you blocked them, marked them as spam, or use a different email service entirely.

If I block someone, will they see a bounce-back message?

No. Blocked messages do not trigger a delivery failure notice to the sender. Yahoo silently routes them to Spam without any feedback to the other person. They may eventually notice you are not responding, but they will not receive a technical error message.

What is the difference between blocking and marking as spam?

Blocking adds an address to your personal blocked list and stops all future messages from that sender. Marking a single message as spam helps Yahoo's filters learn what you consider unwanted, but does not block the sender. Blocking is more permanent and direct.

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

Yahoo Mail does not have a built-in feature to block entire domains at once. You must block individual email addresses. If you receive spam from many addresses at the same domain, you can block each one, or use Yahoo's spam filters and rules to manage them in bulk.

Will blocking someone on Yahoo Mail affect other email services I use?

No. Blocking only works within Yahoo Mail. If you use Gmail, Outlook, or another email service, you will need to block that person separately in each service. Blocks do not transfer between different email providers.