Block a sender in Yahoo Mail directly from your inbox

To block someone on Yahoo Mail, open the email from that sender, click the three-dot menu icon in the top right of the message, and select Block. Yahoo will move that sender's future emails to spam automatically. You can also block someone without opening their email: right-click on their name in your inbox list and choose Block from the menu.

Once you block a sender, you will not see their emails in your inbox anymore — they go straight to your spam folder. If you change your mind later, you can unblock them by going to your blocked senders list in settings.

The block applies only to that specific email address. If someone uses a different address to contact you, that new address will not be blocked automatically.

Key Takeaways

  • Click the three-dot menu on any email and select Block to send that sender's future messages to spam.
  • Blocked emails go to your spam folder, not your inbox, but you can still view them if you check spam later.
  • Blocking one email address does not block other addresses from the same person if they use multiple accounts.
  • You can unblock a sender at any time through your Yahoo Mail settings under blocked senders.
  • Yahoo Mail also filters obvious spam automatically, so blocking is most useful for people you know who are sending unwanted mail.

Where to find your blocked senders list

To see everyone you have blocked and manage those blocks, go to your Yahoo Mail settings. Click the gear icon in the top right corner of your inbox, then select Settings. From the left menu, choose Security and privacy, then scroll down to Blocked addresses.

This page shows every email address you have blocked. You can unblock anyone by clicking the X next to their name. Unblocking means their emails will return to your inbox instead of going to spam.

Unblock someone if you blocked them by mistake

If you blocked someone by accident, the process to undo it is quick. Go to Settings > Security and privacy > Blocked addresses, find the person's email address in the list, and click the X button next to it. Their emails will no longer be filtered to spam.

After you unblock someone, their old emails that were sent to spam will stay in your spam folder — unblocking does not move them back to your inbox. You can manually move them if you need to find an old message.

What happens when you block someone

When you block a sender, Yahoo Mail routes all their future emails to your spam folder. They will not know they have been blocked — there is no notification sent to them. From their perspective, they straightforward will not see a delivery confirmation or read receipt, which they might not notice at all.

The blocked sender can still send you emails; they just will not appear in your inbox. If you need to check whether someone has been trying to contact you, you can look in your spam folder to see their messages. This is useful if you block someone and later realize you need to read something they sent.

Block multiple addresses from the same person

If someone is contacting you from several different email addresses, you will need to block each address separately. Yahoo Mail does not have a feature to block all addresses from a single person or domain at once.

When you notice a new address from the same person, open that email and block it using the three-dot menu. Keep doing this each time they contact you from a different account. Over time, you will have blocked all their common addresses.

Use filters for more control over unwanted mail

Blocking works well for individual senders, but if you want more detailed control — like filtering emails with certain words or from entire domains — Yahoo Mail filters offer more options. You can create a filter that automatically deletes, archives, or moves emails to a folder based on the sender's address, subject line, or message content.

To set up a filter, go to Settings > Filters and click Add new filter. You can then specify conditions (like "from [email address]") and choose what happens to emails that match. Filters work alongside blocking and give you a second layer of control over your inbox.

Frequently Asked Questions

Can someone tell if I blocked them on Yahoo Mail?

No. The blocked sender will not receive any notification that you blocked them. Their emails straightforward will not reach your inbox, and they will not see a delivery failure message either. They may eventually notice you are not responding, but Yahoo Mail does not alert them to the block itself.

Will blocking someone delete their old emails?

No. Blocking only affects new emails from that sender going forward. Any emails they sent you before you blocked them will remain in your inbox or archive. If you want to remove their old messages, you will need to delete them manually.

What if someone keeps contacting me from new email addresses?

Block each new address as it arrives using the three-dot menu. You can also create a filter based on the person's name or domain if they keep using addresses from the same email provider. Filters let you catch variations more easily than blocking individual addresses.

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

Yahoo Mail's block feature works on individual email addresses only. To block all mail from a domain (like all addresses ending in @example.com), use the Filters feature instead. Create a filter where the sender's address contains the domain name, then set it to send those emails to spam.

If I unblock someone, will their old emails come back to my inbox?

No. Unblocking stops new emails from going to spam, but old emails that were already sent to spam stay there. You can manually move them back to your inbox if you need them, but unblocking does not automatically restore them.