"Developing a Bulk Email System" matching MCP connectors:

Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links.

Email for AI agents: read, search, send, organize, and schedule across your inboxes.

Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.

Agent-run cold-email infra: 24 MCP tools, live sending, free sandbox. $99/mo, concierge go-live.

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Verify email deliverability & find business emails (single or bulk) via the Verifox API.

Keyless email checks: disposable, role, and free-provider detection, MX, and typo suggestions.

Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.

DNS and email security scanner with 80 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

Send email and read templates, marketing contacts, lists, stats, bounces and unsubscribes.

Email verification for AI agents — verify, clean & validate emails; self-onboard + crypto pay

Read email/chat conversations, messages, contacts and teams; draft, send and update threads.

Email compatibility analysis across 15 clients — preview, audit, fix, diff, deliverability.

MCP server for Nylas — read email, calendars, events and contacts, and send email or create events.

Email for AI agents: send mail, manage contacts, automations & webhooks. Zero-DNS first send.

Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.

Internet identity for AI agents: register or broker domains, email, DNS - pay by card or USDC.

Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.

PDF, photo, email, and file comparison evidence checks with plain-language reports.

Emailable MCP — wraps the Emailable email verification API (emailable.com)