We can do our part to help Yahoo SpamGuard identify spam by marking as spam any that make it to our Inbox
Ignore any that appears in your Spam Folder, that is what SpamGuard does
Check your Spam Folder for any messages that are not spam, mark them as not spam, then empty the folder by clicking the TrashCan icon on the folder name in the list on your Inbox page.
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Verified answer
The spammers will never stop sending it
We can do our part to help Yahoo SpamGuard identify spam by marking as spam any that make it to our Inbox
Ignore any that appears in your Spam Folder, that is what SpamGuard does
Check your Spam Folder for any messages that are not spam, mark them as not spam, then empty the folder by clicking the TrashCan icon on the folder name in the list on your Inbox page.
http://www.wikihow.com/Stop-Spam
http://www.bbc.co.uk/webwise/guides/stopping-spam-...
here some tips, that might help you.