Who do I notify when I am receiving emails about false lottery winnings from the UK?

Answer 1

You shouldn't open unsolicted email from unknown sources. Often what happens is that when you open up spam, it sends back a trigger to the originating source indicating that a valid email address has been found thus subjecting you to even more spam down the road. Even using the preview pane in email products sends web beacons back to spammers.( http://helpdesk.gwu.edu/mailfilter/spam.html )

However, in this case since you have already opened up this email which is a probably a variant of the 419 Nigerian phishing scheme, display all headers and send it to Fraud Watch International. The email address is in the link to the webpage below.
http://www.fraudwatchinternational.com/lottery/

There are a couple Yahoo pages dedicated to the 419 Fraud
Yahoo Lottery Fraud
http://help.yahoo.com/l/us/yahoo/mail/original/abuse/abuse-63.html
http://help.yahoo.com/l/us/yahoo/abuse/abuse-110240.html

Microsoft also has a similar webpage
http://www.microsoft.com/protect/yourself/phishing/lottery.mspx

Answer 2

I hate that.
What I do, is open the mail and go to the bottom where it says to unsubscribe and do it that way, or I just email them back asking them to stop emailing me and remove me from their list.
It has worked so far.
At least I am not getting 15 a day like I used to.
I only get about 2 a day now.
Yes, I know I am taking a chance for more spam, but it has helped.

Answer 3

Don't even bother. Delete and go on with your life.