"MCP feedback enhancement" 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.

Your unified inbox — everything that reaches you, understood and actionable from your AI assistant.

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

DMARC analytics for AI assistants — domain health, SPF/DKIM records, compliance stats, anomalies.

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

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

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

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

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

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

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

AI-powered email outreach platform — manage contacts, campaigns, sequences, and send follow-ups with deliverability tracking

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

AI-powered email outreach platform — send campaigns with deliverability tracking.

Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus.

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

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

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

Manage Loops contacts, mailing lists, and transactional/event emails.