NO!!! Never. It’s tempting, but resist that temptation every time. The only way you should attain an email subscriber list that’s truly beneficial to your company and your clients is to grow it organically. First, many email service providers won’t allow you to use a purchased list. Second, the addresses found on lists like these aren’t high-quality leads.
These lists won’t contain prospects truly interested in your services, since they didn’t opt-in to your specific email list directly, so they’ll be more likely to mark your email messages as spam.