i haven't used these mentioned sites though i can say this even if you get some one's email just don't spam them with email pitches just introduce yourself and if they respond then you can start a relationship from there. that's my opinion.
Hi, does it ok to purchase the targeted email list to get the sales?
Example from the websites like Leadsblue, data.com, usa info etc places.. please guide me.
With best regards,
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