How ListBro Works

// The whole job, start to finish

Three steps. That's it.

No setup marathon, no manual to read. Drop it, read the verdicts, mail the clean list.

// Step 01

Upload a CSV or push it through the API. Any size, any source, any industry. We don't flinch and we don't lecture you about it.

// Step 02

SEND, HOLD or DROP, each with a plain-words reason. Not a score you have to decode. A straight answer you can act on.

// Step 03

Send the good ones, sit on the HOLDs, bin the dead. Fewer bounces, fewer complaints, more money on every send.

// The analysis, not the blah

A basic check asks one thing: did the mailbox answer? We look at three layers, then hand you the verdict, not a raw data dump.

// The domain

The domain, its mail records, its age and history. A dead or thrown-together domain is money you never had.

// The infrastructure

Whether the address can actually take mail, and whether it's a catch-all hiding dead boxes behind a "yes to everything" door.

// The risk

Traps, complainers and the quiet risky ones that pass a basic check and then wreck your reputation.

One plain verdict per layer. You get the answer, not the machinery behind it.

// Read the answer

Every address lands in one of three buckets. No decoder ring, no maybe. Here's exactly what each one tells you to do.

SEND

The address checks out clean. Put it in the send and go. This is the money in your list.

HOLD

It passes on paper but something's off. Wait, or send to it carefully and watch how it responds before you lean on it.

DROP

This one drags down your bounces, your complaints or your reputation. It costs you money to keep. Drop it.

// See it on your own list

Your first 1,000 addresses cleaned free, with a straight SEND, HOLD or DROP on every one. See the dead weight for yourself, then decide.

First 1,000 free. No card. Let's go.