How can you block someomes emails and have them notified by the email provider??

I have someone who I want to stop sending me emails but I want her to know I blocked her emails. Yahoo just sends them to the trash folder and she will never know they have been blocked. I don't want to notify her myself. I want it to be an official notice that she has been blocked. Any advise?? Thanks
How can you block someomes emails and have them notified by the email provider??
different email program do it differently. if you click on something that says "view full header" you can see the sender's IP address. then do a whois search through a whois search site you find on google. that will give you the network her computer is on and you can email the network admin. saying taht you are getting unwanted emails from a person no their network. Make sue to give then the IP address. if it is not harassment, just block the email and click reply saying you don't want amy more emails
Reply:why do you want her to know you blocked her? That seems like adding fuel to a fire when you can just block her and not have to deal with the matter anymore, clean cut. Email Yahoo and ask them to notify her that she has been blocked for harrassment
Reply:yes if its yahoo just spam them and then when they try to send another the notice should be deliverd tro them stating that u have blocked them...