Buying Email Lists: Why It's a Bad Idea

The email list market

Dozens of sites sell "business email databases": 10,000 emails for $50, 100,000 for $200. Tempting. But almost always a bad investment.

3 problems with purchased lists

1. Stale data. 30% of B2B emails become invalid yearly. 2. No targeting. Broad geographic lists with no industry segmentation. 3. GDPR risk. Buying personal data without consent is a legal grey area.

The alternative: generate your own data

With ContactEra, you create your own list targeting exactly your market. Fresh data (real-time), targeted, and GDPR-compliant. 1,000 businesses with emails = €8.

The scam of qualified files

List sellers advertise 90%+ validity rates. Reality is often very different. Our tests on 3 purchased lists show bounce rates between 15% and 35%. That's catastrophic.

Why? Because these lists are compiled from multiple sources (old scraping, public databases, aggregation) and aren't regularly updated. A list compiled in January with November data already contains 5-10% dead emails.

The real cost calculation

Take a list at €100 for 10,000 emails:

With 25% bounce: 7,500 valid emails remain. Real cost: €0.013/valid email.

But how many match your target? If the list covers "all of France, all sectors," maybe 10-20% are relevant. That's 750-1,500 actually usable prospects. Real cost: €0.07-0.13/relevant prospect.

With ContactEra: 2,000 credits = €8 = 1,000 prospects targeted by industry AND city, with fresh emails. Cost: €0.008/relevant prospect. 10x cheaper and infinitely more targeted.

Hidden risks

Email reputation: A bounce rate > 5% on your first campaign can blacklist your domain with Brevo, Mailchimp or Lemlist. Rebuilding sender reputation takes weeks.

GDPR: The list seller isn't responsible for your usage. If a prospect complains, it's your company that gets fined.

Shared data: You're not the only one buying this list. The same prospects receive the same pitches from dozens of companies. Result: plummeting response rates.

FAQ