inboxes.net

Resend gives you an API. inboxes gives you the inbox. Paste your API key, import your full email history, and get a real client for every domain - threads, search, undo send, scheduled send, snooze, rules, labels, and Gmail-style shortcuts. Tracking pixels and stripped by default. There's an MCP server, so your agent/harness of choice can read and draft your mail (sending is a permission toggle). $5/mo per org, unlimited members - or self-host free.