Verify a Sales List in two minutes
Sales prospecting lists are built to be dialed and emailed, which means the cost of a bad record is not just a bounce — it is also a wasted SDR call, a misrouted sequence step, and a potential compliance flag if you are calling numbers on do-not-call registries. Unlike marketing lists, sales lists need phone and email verified together because outreach often happens across both channels, and a contact whose email is valid but whose phone is disconnected is only half-useful to a rep working a multi-touch sequence.
What's hiding in your list
Prospecting data vendors update their databases on different schedules, and a contact who was at a company six months ago when you licensed the data may have moved on — leaving both their email and phone number invalid.
SDR teams under quota pressure often skip verification steps to move faster, which short-term increases outreach volume but long-term degrades the domain reputation used for all their email sends.
Do-not-call and do-not-email compliance checks are a separate layer from deliverability verification — a number can be technically active but still legally off-limits depending on your industry and the contact's registration status.
Email and phone — cleaned in one pass
Verify in one pass
Every email checked for deliverability and every phone validated — in a single upload.
Catch what others miss
Typos, catch-all domains, disposable addresses, dead numbers and silent duplicates.
Flat, simple pricing
Hand sales a list of real, reachable people. No per-credit math, no surprise overage bills.
Clean leads in three steps
No setup, no integrations, no learning curve. Upload a file, download a better one.
Upload your CSV
Drag in any contact list. We auto-detect email, phone, name and company columns.
We verify everything
Every email checked for deliverability, every phone validated, duplicates flagged — with a live quality score.
Download clean leads
Export a verified, deduplicated list your team can actually call and email.
Email and phone, cleaned in a single upload — see exactly how many bad contacts are hiding in your list before you pay a cent.
100 free verifications · no credit card · results in under 2 minutes
Frequently asked
Should I verify a sales list before importing it into my sales engagement platform?
Absolutely — importing unverified contacts into a sequencer means bad addresses get enrolled in steps immediately, and the first time the platform sends to an invalid address the bounce hits your sending domain's reputation.
How do I keep my sales list current between quarterly data refreshes?
Re-verify the most time-sensitive segments — prospects in active sequences, high-priority accounts, and any contact older than 90 days — before adding them to a new outreach motion rather than relying on the original import verification.
How does BounceBlock save time for a sales ops team managing a large prospect list?
By verifying email and phone in a single pass, it eliminates the need to run contacts through two separate tools and then reconcile the results — the cleaned file comes back with both channels validated and ready to map into your sequencer's import template.
Stop wasting hours on dead leads.
Upload your list and see how clean it really is — free, in under two minutes.