Yahoo! Mail: How to Block Email from a Specific Sender
Tired of receiving email from someone who has your address but you wish they didn’t? Yahoo! Mail allows you to block up to 500 different email addresses so you can easily block that sender from bugging you anymore.
1. Login to your Yahoo! Mail.
2. Go to the upper-right corner of the page and select Options. Click on Mail Options from the resulting menu.

3. In the left pane, select Spam.
4. Go to the Blocked Email Addresses section and input the desired address you wish to block into the Add a blocked address textbox. Click the Add button.

The address will be blocked from putting mail in your inbox. If you change your mind, you can easily remove the block by going back to the Blocked Email Addresses, selecting the desired address from the list of addresses and clicking the Remove button.






Name said on January 9, 2010
Am receiving daily Spam from a source, tried to list in the Blocked Senders List, but the spam does not show a domain name. I tried “Unsuscribe” but get an error message “Bad Gateway”.
Patbythebay said on February 27, 2011
the emailer I want to block I also want them to know I blocked them ! not just for it to go to spam !!