How do I block emails?

Is there any way I can go into my yahoo/ymail email account settings and block emails from a particular sender and specific email address? I don't want to entertain my ex's obnoxious emails at all. I don't even want to see 1 email from him in my Inbox...

I want to block a website from sending me emails 100%. Just say a website emails me and I block the email address and then they use a different email address but same website (example: info@web.com and they change it to info1@web.com). How do I block...

I am currently having a serious problem with unsolicited emails from "employers from other nations seeking workers, lottery winnings and charities" and if possible I would like to know how to block these emails entirely or how to move them...

I got an error message saying that my email address has a block on it from my friend when I tryed to reply to the email it wouldnt let me it just said your email has been blocked so how can my friend take the block off.

constantly get unwanted emails from different websites example blackplanet.com want to know how to block them

i've been getting emails from dating service call alt desire. i don't see anything on the alt desire to click on to stop getting these emails. how do i block there emails? thnak you for help

I want to block receipt of emails from a certain email address. How can I block this so I do not receive them? Is there a way for a specific email address to be blocked from your yahoo address so that emails do not come through?

getting spam emails from loads off poeple saying i won this an that an loads of emails comin in from ghana an other countrys

I keep receiving emails about winning money or that someone needs money from random people. I've noticed that none of the emails have my address (or any email) address in the To: field. Is there a way to block emails that aren't directly sent to my email...