How to block an e-mail contact?

my friend has a contact in her yahoo that she cannot block properly both email and IM.. He is a scammer from Ghana .. She has tried and tried to block him and he keeps popping up and calling her too ridiculous.. Thank you

I want to block someone that is emailing me and they are also one of my contacts. How do I block them from sending me emails?

I don't want to receive emails from a certain contact but don't want to spam it, how do I just block it?

When I send an email you can see my contacts email addresses. How do I allow just the names or nicknames to show?

I have been getting obscene emails and wanna know how to block all

i know delete but i wanna block too plz help??

I would like for them to be aware of the fact that I have blocked them, I'm practically being cyber stalked and want him to know his email bombardment has failed. Thankyou in ...show more

no email address listed on my addresses contact list will go into the fowarding block to be forwarded. I get a buzzer and it wont enter the address. can you help?

I just blocked someone in my Yahoo email account. It says that any person who you block will not know they are blocked if they try to send an email, I just won't receive it. However, I just sent the blocked person an email. If they are blocked in my...