Suppose I customize and email 1000s of potential clients. Is that considered as spam? Would you recommend any nice template/examples to use? Should I send these emails from a generic email box or from my personal email? If I include an "unsubscribe" option, won't the receiver think "hey, I never subscribed to this, let me mark it as spam".
On a side note, I used to contact potential clients years ago and then GoDaddy marked my domain as spam and made me cough up $199. The email wasn't even sent from the same domain (google godaddy spam scam). I moved off to NetworkSolutions. Anyone sending cold emails, please beware of this.