This is going beyond what is tolerable.
Since long ago I have the policy not to sign up for any mailing list, and I use the spam filter in all my e-mail accounts.
NEVER, EVER in my life I have received an interesting offer, never I have bought anything offered to me through e-mail, and, even if I am interested in the product, I wouldn't buy it from a company that is sending spam.
I started to block entire domains as I wasn't interested on anything from them, then they started to use subdomains, so, I blocked the domain
(the last part), so I wouldn't receive anything from any subdomain belonging to that domain.
They realised that and then they are using yahoo, guess what? they send all the spam to hotmail and as nobody that has something useful to tell me uses my hotmail account I just blocked yahoo too.
But I also notified yahoo that their service is being used for spam purposes, I included the headers and the url of the company being promoted.
I really wonder what is their iq level, they are forcing spam e-mail, do they really think that by irritating people they are going to sell?
By the way, I have blocked doubleclick in my computer as well, they really irritate me with their pop-ups and don't want them to know anything about me, they too use stupid cheatings to avoid block, so, I blocked them all together.
And they wonder why internet advertising doesn't work...