Clean an Email List in two minutes
A clean email list is the foundation every campaign is built on — invalid addresses inflate your bounce rate before a single message lands in an inbox. Most lists accumulate dead weight silently: people change jobs, abandon free accounts, and typos slip past signup forms unnoticed. Running a thorough clean before you hit send is far cheaper than recovering from a deliverability penalty after.
What's hiding in your list
Syntax errors and transposed domains (like @gmial.com) are easy to spot but rarely caught at the point of collection without real-time validation.
Dormant addresses that once worked now resolve to nowhere, and your ESP has no way to warn you until the bounce happens.
Large lists cleaned infrequently develop a compounding decay problem — industry data suggests B2B email addresses churn at roughly 20-30% annually.
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 back a verified, ready-to-send list. 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
How often should I clean my email list?
For actively mailed lists, quarterly is a practical baseline; for cold or imported lists that haven't been mailed in six months or more, clean before every campaign.
Does cleaning remove real subscribers?
A well-calibrated cleaner removes only addresses that cannot or will not receive mail — truly invalid, disposable, or role-based entries — leaving engaged subscribers untouched.
How does BounceBlock handle a mixed list with some valid and some suspect addresses?
Every address receives a 0–100 quality score so you can set your own acceptance threshold, keep borderline addresses in a review bucket, and only hard-reject entries that score below your risk tolerance.
Stop wasting hours on dead leads.
Upload your list and see how clean it really is — free, in under two minutes.