InboxJoy

Connect unlimited domains and inboxes. InboxJoy rotates sending across them automatically and watches bounce rates — if an inbox starts bouncing, it stops sending from it before your domain gets burned. Connect Gmail or Outlook in one click. Upload a CSV. No dedicated domains, no DNS, no ops layer. Also works entirely from Claude/ChatGPT via MCP. $25/mo flat, unlimited access. 7-day free trial.