Reporting spam by tagging the spam mail as spam when it is received is the most efficient method to combat spam.

However, you can also report spam coming from Nokia Mail, powered by Yahoo, using the form at http://help.yahoo.com/l/us/yahoo/mail/ymail/spam.html

This topic is valid for:

Nokia Lumia 900,Nokia Lumia 800,Nokia C6,Nokia E73,Nokia E7,Nokia E6,Nokia N900,Nokia X2-01,Nokia 808 PureView,Nokia 700,Nokia 5310,Nokia 1616