Extract Business Leads from Gmail to Sheets with Slack Alerts

This n8n workflow automates the discovery of business leads hidden in your Gmail inbox using a reverse outreach approach. It processes emails via manual trigger for historical data (up to 5000 emails) or daily scheduled runs, intelligently filtering out personal domains, system addresses like no-reply, and generic inboxes such as info@ or support@. Key details like company name, email, domain, and subject are extracted and stored in Google Sheets with automatic duplicate prevention based on email address—either appending new rows or updating existing ones.

The workflow enhances lead generation efficiency by turning passive inbox data into actionable insights, saving hours of manual review. Benefits include no duplicate entries, real-time Slack notifications with lead summaries, and scalability for high-volume inboxes. Ideal for sales teams, marketers, and business developers mining partnerships or clients from unsolicited emails.

Setup requires Gmail, Google Sheets, and Slack credentials. Code nodes handle custom filtering logic, ensuring only high-potential leads proceed. Use cases span B2B prospecting, customer discovery, and inbox hygiene, transforming email overload into a lead pipeline with minimal effort.