Email Hosting + API & MCP Server for AI

Buying a domain is easy. Getting real email working on it usually isn't - most cheap options are just forwarding, so replying "as" your own domain gets awkward fast, and a full Google Workspace-style suite is overkill if you just need [email protected]. Mektup is self-hosted, multi-domain email hosting built for exactly that gap - for both humans and AI agents. Register a domain and get back the real DNS records to add. Once verified, every mailbox you create is a genuine IMAP/SMTP inbox, not a forward: reply from your domain in any real mail client, or use the built-in webmail dashboard (search, threading, folders, attachments, contact forms, vacation auto-replies). What makes it different for developers and AI-agent builders specifically: a full REST API, a native MCP server (register domains, create mailboxes, send and read mail - all as tool calls inside Claude Code, Cursor, Lovable, Replit, or any MCP client), and a CLI for everything else. Delivery-status tracking is sourced straight from our own mail server logs, not a third-party tracking pixel, so you get real sent/deferred/bounced visibility with the actual rejection reason when something fails. Free tier: 1 domain, 3,000 emails/month with no daily cap (most competitors throttle bursts even under their monthly limit), 3GB storage, no credit card required. Paid tiers scale up to unlimited domains and mailboxes for agencies and platforms.