Best Email MCP servers.

B2B lead generation, email verification, company enrichment, and agentic GTM Ops.

Agent-native marketing email: draft, edit, screenshot, and send from your verified domain.

54 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.

135 MCP tools: geo, email, phone, company, DNS, FX, equities, weather, tax, econ, intel — one key.

Company firmographics from domain: name, socials, tech stack, emails, phone, address

Audit email domain deliverability: SPF, DKIM, DMARC, MX. Score 0-100. x402.

Find email addresses from name and company domain. x402 paid.

Send emails programmatically via Resend. Text and HTML. x402 micropayment.

Verify emails: syntax, MX records, disposable detection, quality score 0-100. x402 USDC.

Person lookup from email: name, title, company, social profiles. x402.

Detect PII in text: emails, phones, SSNs, credit cards, IPs. Regex + Luhn. x402.

Allow AI systems to read, send, archive, and manage emails via Gmail.

Turn signals from email, CRM, and meetings into a prioritized daily sales to-do list.

Analyst-grade US severe weather: warnings, SPC outlooks, RAP environment, MRMS, GLM lightning

Microsoft Outlook personal accounts: mail, calendar, contacts, to-do, drafts (62 tools).

Unofficial Proton Mail MCP — send, read, search & organize email over SMTP and IMAP

MCP server for Abnormal Security — AI-powered email threat detection, cases, and remediation.

MCP server for Check Point Harmony Email & Collaboration (Avanan) email security.

MCP server for Mimecast email security: message queue, held messages, domains, and threats.

MCP server for Proofpoint TAP — threat intelligence, forensics, quarantine, and email security.