I'm sure one person out of a billion has bought viagra from a spam email, it doesn't mean all of those were fine. There is no cut and dry rule, but here is a s

I'm sure one person out of a billion has bought viagra from a spam email, it doesn't mean all of those were fine. There is no cut and dry rule, but here is a simple heuristic that will apply to most emails you write and receive: If it takes longer to write it than it does to read it, it isn't spam. This metric also generally applies to cold emails as well. However, once you start automating emails then it is a slippery slope and you'll very quickly end up in the spam range.