
<1%
Bounce rate on verified lists
Measured on live cold email campaigns that were sent only to addresses we marked as deliverable.
Most tools stop at risky. Bounce Barrier works through catch-all domains, finds missing addresses and tells you what is safe to send.
Upload a CSV or Excel file and get it back with every original column and a clear result for each address, or check a single address before you hit send. Every answer comes from a real conversation with the mail server, not a guess from the domain name.
When you know who you want to reach but not their address, Email Finder works it out from a name and a company domain and verifies it before you see it. If we cannot confirm one, we tell you instead of handing you a guess, and the search costs nothing.
Catch-all domains accept every address, so most tools stop there and call them risky. On a business list that is often a big share of the file, and it is where we keep working.
On the lists we measure, we resolve close to half of the catch-all addresses other tools mark risky into a clear answer. The rest stay clearly marked instead of dressed up as valid.
That is the whole product in one sentence: more of your list gets an answer, and the answers hold up when you press send.
We do not guess. When an address cannot be resolved we say unknown, and you are not charged for it, because charging for a shrug is how this industry lost its reputation.
We do not sell your list, mail it, or move it into a shared marketing database. The file you upload exists to produce your results and nothing else.
Bounce Barrier is built by people who send email for a living and run their own lists through it before yours.
The people who build the product answer its support. If something is wrong, the person who wrote it reads your message. Write to [email protected].

<1%
Measured on live cold email campaigns that were sent only to addresses we marked as deliverable.
/YOUR DATA
Cold email lists are the most sensitive file you own. Here is exactly what we do with yours, and what we never do.
Your list is never sold, handed to anyone else, or merged into a shared marketing database.
Your list travels to us over an encrypted connection, and the file we keep is stored encrypted.
Remove a list and its results from your dashboard in one click, and the rest goes when you close your account.
We run every check on our own servers in the EU, and the backups of your results stay there too.


The one you keep putting off because you are sure half of it will bounce. Find out in minutes, then send to the part that is real.