3 Effective Ways to Block Spam Messages on Yahoo Mail

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Keep unwanted messages out of your Yahoo inbox

Co-authored by Luigi Oppido and Darlene Antonelli, MA

Last Updated: June 27, 2025 Fact Checked

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Marking as Spam on a Computer

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Marking as Spam on Mobile

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Blocking Spam Email Addresses

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Video

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Q&A

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Tips

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Warnings

Are you getting tons of spammy emails in your Yahoo inbox? When you mark email messages as spam, you'll be training Yahoo's spam filter to better identify and filter such messages in the future. Marking messages as spam also moves those annoying bulk messages out of your inbox and into the spam folder where they belong. You can mark messages as spam on both the website version of Yahoo Mail and in the mobile app on your Android, iPhone, or iPad. This wikiHow article will teach you how to effectively block, filter, and delete spam on Yahoo Mail.

Things You Should Know

On a computer, select the spam email(s) and click the "Spam" button.
If the email is part of a mailing list, you'll see the option to "Unsubscribe" as well.
On a phone or tablet, tap the three-dot menu in a message, then tap "Mark as spam."

Method 1

Method 1 of 3:

Marking as Spam on a Computer

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1
Open your Yahoo inbox. Go to https://mail.yahoo.com in your web browser. This will open your Yahoo inbox page if you're logged in. This method will remove spam messages from your inbox and filter future messages like them to the Spam folder.
- It is impossible to prevent 100 percent of spam from entering your inbox, but you can reduce the amount of spam you receive by regularly marking spam as such and deleting it, as this will "train" your spam filters.^{[1]
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  Expert Source
  
  Luigi Oppido
  Computer & Tech Specialist
  
  Expert Interview}
- If these spam emails are part of a marketing email list, you'll also see the option to Unsubscribe from that list, preventing future emails from that company.
Click the checkbox to the left of each email that you want to mark as spam.

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Click the Spam button. It's near the top of the page, just below the search bar. This filters the spam messages to your Spam folder, reports the sender as spam, and trains your spam filter to better identify similar messages as spam in the future.^{[2]
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- To permanently delete spam messages, hover your mouse cursor over the Spam folder in the left panel, click the trash icon, and then click OK.
If you only selected one message, or you chose several messages from the same sender, Yahoo Mail will ask if you want to unsubscribe instead of marking the message(s) as spam. Click Unsubscribe on the pop-up to have Yahoo unsubscribe you from the list, or Report as spam to continue filtering messages to your spam folder.^{[3]
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Method 2

Method 2 of 3:

Marking as Spam on Mobile

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1
Open the Yahoo Mail app. You can report and filter spam messages in the Yahoo Mail app on your Android, iPhone, or iPad easily.
- If you have multiple accounts logged in, you may have to select an account before continuing.
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Tap the email you want to report. If you want to report more than one email message as spam, tap Edit first, and then tap each message you want to mark as spam.
- If the spam messages are from a mailing list, you can select Unsubscribe instead.
You'll see three horizontal dots on an iPhone or iPad, and three vertical dots on Android. A menu will appear.^{[4]
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Tap Mark as spam. You'll find this option at the top of the pop-up menu. This filters the messages to your Spam folder and trains the filter to better identify similar messages as spam in the future.^{[5]
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- If the message was sent to you as part of a mailing list, tap Unsubscribe instead. This tells Yahoo that while the messages aren't spam, you don't want to receive them anymore. Yahoo will attempt to unsubscribe you from the mailing list.

Method 3

Method 3 of 3:

Blocking Spam Email Addresses

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1
Open your Yahoo inbox. If you're still getting spammed from a particular address, you can block it in your Yahoo Mail settings. Start by signing in to Yahoo Mail in a web browser.
- If you aren't logged into Yahoo, enter your email address and password when prompted.
- Unfortunately, many spam services use dynamic email addresses to get around blocking.
This opens the message.
It's at the top of the message.
A pop-up with several options will appear.
By default, all options are selected—you'll be blocking future emails from the selected sender, and deleting all existing emails from the sender. If you don't want to delete the messages, you can uncheck "Delete all existing emails."
This blocks the spammer from sending you additional messages.

Community Q&A

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Question

I receive about 30 spam emails each day, is there a way to stop them?

Community Answer

Find another mail provider. You can block messages on Yahoo, but it makes no difference and you cannot even unsubscribe from the messages you receive, so it is a hopeless situation.

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Question

What do I do if videos appear after I clear my spam box?

Community Answer

I always leave just one piece of spam in there so that I don't get videos. I wish they wouldn't do that, though, as do a lot of other people, and they just don't seem to listen.

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Question

How do I block explicit sex sites on Yahoo mail?

Community Answer

If they are emailing you, block them. If you see them as ads, then use adblock.

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Tips

The easiest way to prevent spam from reaching your inbox is by refraining from entering your email address on sites that you don't absolutely need to use, though Yahoo addresses in general are targets for spammers. Another useful idea is to have a dedicated junk email address.^{[6]
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Expert Source

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Expert Interview}

Thanks
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Many business newsletters send out daily or weekly emails. While not usually "spam" per se, these emails can be irritating. You can unsubscribe from them by finding the unsubscribe link at the bottom (or top) of the email and clicking it.

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There are 3rd party services, like Mailwasher, that help keep spam out of your inbox that you can try.

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Warnings

Sometimes, well-meaning emails can end up in the Spam folder by accident. It's a good idea to check the Spam folder semi-regularly.

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Unfortunately, Yahoo is notorious for unblockable spammy practices such as showing videos in your inbox, sending promotional emails to you, and displaying ads; but there are ways that you can block these ads.

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