USE CASE:

Checking a lead list before it goes into the CRM

The job here is checking a lead list before it goes into the CRM, and every real option for list hygiene is below, ours and everyone else's. Mamba Labs writes Apify actors for this kind of work, and Lead File Import Checker is the one aimed at list hygiene.

Last updated November 2, 2026

What is actually going wrong

A purchased or scraped list goes into the CRM and the sequencer, and its problems come along. Expect duplicates and role addresses. Expect dead domains, company names that do not match the domain and missing fields. Each one costs something later, from bounces to bad routing. Catching them before import is cheap. Cleaning the CRM afterward is not.

Traditional Search Tools

  • Email verification services. They check whether each mailbox accepts mail. That is one problem out of several, and they charge per address.
  • CRM data quality tools. Insycle and similar clean data already inside the CRM. They work after the import, which is the expensive moment.
  • Sort and filter in a sheet. Dedupe on email, filter for info@ and similar, and spot check domains. It catches the obvious. Dead domains and mismatched companies slip through.

Mamba Labs Apify Actors

These are the actors we built for this job. If yours is not covered here, search from the bar at the top of the page or contact us here and tell us what you need.

Related Actors

Lead File Import CheckeractorAll use casesindex