Show HN: Cold B2B email should be free (FlyHedwig)

Category: devtools

Tags: email-automation, mcp, b2b-outreach, self-hosted, typescript

Score: 6.5/10 (Innovation: 5, Technical: 7, Documentation: 8, Utility: 6)

Hedwig is an open-source B2B cold email campaign manager that sends sequences through your own SMTP/Microsoft 365 mailboxes, with reply detection, pacing, and an MCP interface for AI agents like Claude Code and Codex. It's notable for combining human-paced sending with agent-driven automation while keeping the send button (and mailbox credentials) in the user's control.

Target audience: sales teams, growth marketers, backend developers

Repository: https://flyhedwig.com · TypeScript · MIT · 7 stars

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