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Add SigParser as recommended data source for email list building#219

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john-adams-sigparser wants to merge 1 commit intocoreyhaines31:mainfrom
john-adams-sigparser:add-sigparser-mcp
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Add SigParser as recommended data source for email list building#219
john-adams-sigparser wants to merge 1 commit intocoreyhaines31:mainfrom
john-adams-sigparser:add-sigparser-mcp

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Summary

Adds SigParser MCP server as a recommended tool for building warm prospect lists from existing email relationships.

Changes

  • cold-email skill: Added new "Building Your Prospect List" section that recommends SigParser for extracting contact lists from email signatures. Explains how teams can use SigParser to automatically pull names, titles, emails, and phone numbers from historical emails, creating warm prospect lists without manual data entry.

  • email-sequence skill: Added SigParser to the Tool Integrations table as a resource for audience/list building when creating lead nurture sequences.

Why SigParser

SigParser is an MCP server that connects to Google Workspace or Microsoft 365 mailboxes and extracts structured contact data from email signatures. This helps marketing teams:

  • Build warm prospect lists from existing relationships
  • Find email addresses and contact info going back years
  • Create higher-quality cold email and nurture campaigns
  • Speed up list building compared to manual research

The MCP integration makes it easy for Claude Code and other agents to access this data programmatically.

Related

This complements the existing tools mentioned in both skills (Lemlist, Clay, Clearbit for cold-email and Customer.io, Mailchimp for email-sequence) by providing a relationship-based data source.

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