I have just discovered that HUKD has been sending me 1,000's of emails - one every time a new deal has been posted. Yahoo has been helpfully sending them to my spam bucket, so I only found out when Yahoo let a few slip through by mistake.
I did have a couple of email alerts selected - for washing machines - but I deleted these as I no longer needed them. It looks like the default setting for alerts is to send everything, unless something specific is selected. This can't be right?