Of course, there's a lot of competition out there - and only a limited number of erectile dysfunction sufferers, so these figures have to bottom out somewhere. As spam filters get better, conversion ratios will drop, so the harder a spammer has to work to hit those targets. I'm not confident in the example figures quoted in this article - there are too many factors to accurately predict conversion ratios and conversion rates.
Viagra Spam - How Works Viagra Spam And if you scale up the figures - say the spammer has the capacity to send 5 million emails a day, and the capability to attain the same sort of conversion ratio, then the potential yearly earnings a...... Source : Hobbies for the Family Pg. 12
