Open-source AI-native cold outreach and email warmup
Self-hosted inbox warm-up for cold-email senders. BYO seed pool — your domains exchange real-looking emails to build sender reputation before your first cold campaign.
Top Email Warmup 🌟 Star if you like it! 🌟
🩺 Free, read-only cold-email deliverability auditor for Claude Code — diagnose spam placement, bounces, warmup, DNS/DMARC and IP issues across Smartlead, Instantly, PlusVibe, SendKit, EmailBison, IMAP & DNS. Nothing changed, nothing to break.
Build your own self-hosted email warmup + cold-email deliverability stack (BillionMail + a Gmail-inbox warmup loop via the Gmail API). The whole methodology, ~$45/yr vs $360–1200/yr for Instantly/Smartlead. MIT.
Open-source email warmer for Gmail and IMAP. Warm a mesh of owned mailboxes before campaigns.
⚡ AI-native email warmup & inbound lead intelligence platform — Next.js 15 frontend
Smartlead is cold email infrastructure for outbound sales and lead generation, focused on inbox deliverability through unlimited mailbox rotation, automated warmup, and a unified master inbox.
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