Knowledge Base
Guides, references, and answers to help you get the most out of Leedrush Engine.
Topic Areas
Getting Started
Overview of the platform, data architecture, and first steps with the enrichment pipeline.
File Formats
Supported CSV headers, column mapping guide, and encoding troubleshooting.
Billing & Credits
Understanding credit consumption, invoices, and upgrading your plan.
API & Webhooks
Developer documentation, REST API reference, authentication, and webhook setup.
Integrations
Connect Salesforce, HubSpot, Pipedrive, and more to push qualified leads directly to your CRM.
Full User Guide
Complete platform documentation covering every feature, setting, and workflow.
Email Hygiene
Upload your list, classify risky addresses, and download a clean outreach-ready CSV in minutes.
Frequently Asked Questions
email column, and the tool runs each address through SMTP handshake verification and domain signal analysis, tagging each one as valid, risky, catch_all, role_based, invalid, disposable, or unknown. Download only the clean, deliverable addresses to protect your sender reputation.