What it is
A mailbox product on Cloudflare: custom domains, inbound routing, API sending, and mailbox management in one workspace. The public README calls it a self-hosted inbox. This note stays at that level.
What is live
mailflare.lelandjin.com answers. Source is LelandJin/mailflare.
What this note is not
Not a deploy runbook. No tokens, no local secret files, no Cloudflare account IDs. If you want to run it yourself, use the public repo.