Email and newsletters

WarmySender - Outreach on autopilot with AI agents alternatives

2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.

The full assessment →

The projects

eracle/OpenOutreach2,637licence unclearAgentic email automation that finds leads and runs outreach workflows.Open on GitHub Billionmail/BillionMail15,392AGPL-3.0Self-hosted mailserver and email marketing platform for newsletters and campaign sending.Open on GitHub

What you give up either way

Large built-in verified B2B lead database covering US/Canada
Established peer-to-peer warmup network of real mailboxes
Dedicated proxy pool and LinkedIn account-safety infrastructure
Polished multichannel UI and deliverability guardrails
Instagram DM outreach as an integrated per-seat add-on

An open-source project doing the core job proves a replacement is possible. It does not prove it matches WarmySender - Outreach on autopilot with AI agents, and it does not prove anyone has run it for a month. How we decide.