This depends on your email provider. What web site or program do you use to read your email? (Examples: GMail, Yahoo, Hotmail, Outlook, Thunderbird.)

If you look in the help section of your email site/program, you can learn how to set up filters or block addresses.

I use Yahoo and hotmail. Thanks mbrubeck.

Here's a page about How to block an email sender in Hotmail.

See the Yahoo Mail or Hotmail help pages for more information.

I use Mozzilla Firefox Web mail. How to I block a particular sender?

Thank you,

John B.