Can i block a person email address?

[Jenne']

I don't want this person emailing me anymore, but i don't want to have to change my user name
@yahoo.com

 

[pcompanykiller]

Depends what client you are using, e.g. hotmail, gmail or a personal email address ending in @whateveryouwant
In most cases there will be an option to block contact from someone.
Please tell us what client you are using