Billionverify Bewertungen 

I run an AI voice-agent business and verify the emails for my B2B lead pipeline through BillionVerify before any outreach goes out. It's been genuinely solid for us.

The thing that impressed me most is how it handles the "unsure" domains — the catch-alls and marginal addresses where other tools just throw up an ambiguous result. BillionVerify actually resolves a much higher portion of those, so I'm not scrubbing leads that might have been good, or worse, keeping bad ones. For my outbound volume, that granularity is worth more than the raw accuracy figure.

On top of that, the pricing is the best I've found for what you get. Most comparable services want more per email, especially at the batch sizes I run. BillionVerify is cheap enough that verifying my list costs almost nothing against what bad data would cost me in bounced emails and burned sender reputation.

The verification itself is fast and the API is straightforward to plug into my workflow. Honest rec — if you're doing heavy lead gen and just want clean data without the premium price tag, this does the job.

Fantastic and accurate! It's got a clean UI, detailed generation of email verification results, and it's just as accurate as MillionVerifier.

Great platform. Connecting with AI engines (Claude, GPT) via the API is incredibly smooth. Leveraging artificial intelligence for email verification makes the entire process effortless.

I run a Calgary digital marketing agency. We integrated BillionVerify through its API into our business development pipeline to validate email addresses before they entered a cold outreach sequence. Every contact hits the verification endpoint at ingestion, so invalid and risky addresses never make it into a send list.

Better than Listclean.
Very Good

BillionVerify is a professional email verification service that helps businesses validate email addresses with 99.9% accuracy before sending. Bad email data costs businesses money. Every bounced email hurts sender reputation, wastes marketing spend, and skews campaign analytics. BillionVerify solves this by verifying email addresses through multi-layer checks — syntax validation, domain verification, MX record checks, SMTP mailbox verification, and AI-powered detection — all in under 300ms. What we detect: - Invalid and non-existent email addresses - Disposable and temporary emails - Role-based addresses (info@, support@, admin@) - Spam traps that can get your domain blacklisted - Catch-all domains that accept any address How businesses use BillionVerify: - Clean subscriber lists before email campaigns to reduce bounce rates - Verify user emails at signup to block fake registrations - Validate prospect data before sales outreach - Maintain list health with regular bulk verification We integrate with 25+ platforms including Mailchimp, HubSpot, Salesforce, Klaviyo, SendGrid, Zapier, and Make. Our REST API with webhooks enables custom integrations with any workflow. Since launch, BillionVerify has verified over 1 billion emails for 10,000+ businesses across 200+ countries. Pricing starts at $0.8/month with credit-based plans. One-time packages are also available. Every new account gets 100 free verification credits — no credit card required. Credits never expire. All data is processed through TLS encryption and is not stored after verification

Billionverify is the best tool to verify emails. The interface is user friendly and super easy to use. The results provided by Billionverify are 99.99% accurate.

I'm not massively technical but I've found this extremely easy to use and setup for my own business and my clients. It's greatly improved the quality of our email addresses - and the engagement / support from the founder (Leo) is great.

Great tool, but they ate up my credits a while ago. Regarding cleaning the email lists, they're even better than Never Bounce, but they eat up your credits!.

I like billionverify for it being user-friendly and really easy to use and actually deliver what it promises to do, and extremely fast at doing so