Is there an email spam prevention service?

I'm looking for an email spam prevention service for Yahoo mail. I see there is Norton Safe email, but it appears to be looking for suspicious inbound email. I'm looking to prevent the hundreds of innocent but annoying advertising emails that I never asked for. It is too tedious to constantly be unsubscribing from them individually. Does Norton or anybody offer such a spam prevention service?

Thank you. 

 RayA:
I'm looking for an email spam prevention service for Yahoo mail.
I'm looking to prevent the hundreds of innocent but annoying advertising emails that I never asked for.

Do you run an ad blocker? 

How to Remove Advertising from Yahoo Mail
Install an ad blocker on your web browser

https://allaboutcookies.org/remove-advertising-from-yahoo-mail - August 2023

How to Block Banner Ads in Yahoo Mail
https://www.wikihow.com/Block-Banner-Ads-in-Yahoo-Mail - December 2023

In Yahoo Mail, advertisements appear on the right side of the window and inside the inbox. While it's possible to temporarily hide ads, you must pay for a Yahoo Mail Pro account to view your mail ad-free.

https://www.lifewire.com/hide-ads-more-room-for-messages-yahoo-1174460 - August 2021



Remove or temporarily hide ads in Yahoo Mail
https://help.yahoo.com/kb/SLN15803.html

Manage spam and mailing lists in Yahoo Mail
https://help.yahoo.com/kb/SLN28056.html

Control excessive spam email
https://help.yahoo.com/kb/SLN35621.html



 RayA:
Does Norton or anybody offer such a spam prevention service?

How To Stop Spam Emails On Yahoo
https://clean.email/blog/email-providers/how-to-stop-spam-emails-on-yahoo - December 2023

MAILWASHER PRO STOPS SPAM
https://www.firetrust.com/products/mailwasher-pro - November 2023



Google and Yahoo have announced that starting February 2024, they will implement stricter spam filtering criteria, focusing on enhancing security and authentication to combat phishing and spam. These changes will deeply impact how emails are filtered and which ones are deemed worthy of the inbox versus the spam folder.

https://atdata.com/navigating-the-new-era-of-email-google-and-yahoos-spam-filtering-changes/ - November 2023