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115,558 servers. Updated
20 Best Email MCP Servers: compared and ranked, November 2026Ranked from 3,360 matching servers on stars, growth, downloads and maintenance. Updated .

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  • A
    license
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    quality
    A
    maintenance
    A stdio MCP server exposing a validate_emails tool that lets agents screen email lists without sending mail or probing SMTP, checking syntax, DNS/MX records, disposable domains, role accounts, free providers, typo suggestions, and SPF/DMARC. Each address comes back with a valid/risky/invalid/unknown verdict plus machine-readable reason codes so agents can clean leads and signups before outreach or import.
    2
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    A local, read-only MCP server (plus CLI) over your own stock/ETF transaction log. A deterministic core computes drawdown-first risk with bootstrap confidence intervals and validates targets with walk-forward verdicts. The assistant narrates, but the number fence makes it structurally impossible for the model to produce a figure.
    8
    1
    AGPL 3.0
  • A
    license
    A
    quality
    B
    maintenance
    Enables verification of email address lists through a chosen third-party service (ZeroBounce, NeverBounce, MillionVerifier, BounceBan, or Reoon), returning one normalized row per address with verdict and role, free, and disposable flags. It protects credits by skipping malformed or duplicate addresses and stopping runs on invalid keys or exhausted balances.
    1
    0
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Self-hosted, multi-account Gmail MCP server for Claude and Codex over Streamable HTTP, with explicit account aliases, owner-only OAuth, and encrypted credential storage. Supports searching and reading email, creating drafts, and optional sending and label changes.
    2
    9
    4
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Enables resolving the likely employer behind Gmail, Outlook, iCloud, Yahoo, and other free-mail signups by checking public Gravatar profiles, signed GitHub commits, and LinkedIn results. It returns the person’s name, employer, employer domain, confidence score, and evidence URLs.
    1
    73 npm
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Send email through your own Amazon SES account, and check domain verification, the suppression list and sandbox status. Works with any SES account; Wraps adds send history and delivery events.
    7
    1
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Giggal.ai is an email verification tool that runs a deep mailbox existence check on every address and verifies catch-all/accept-all and even SEG protected emails. Your bounce rate stays under 5%, and the 30% of every B2B list that other tools flag as "Risky" becomes deliverable again.
    3
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Enables AI assistants to search, read, draft, and send Gmail messages, as well as manage labels and trash using natural language.
    24
    80 npm
    MIT
  • A
    license
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    quality
    D
    maintenance
    Checks email deliverability: audits a domain's SPF (including the 10-lookup limit), DKIM, DMARC and MX records with ranked fixes, checks a sending IP's reverse DNS and blocklist listings, and tests email headers against Gmail and Yahoo bulk sender requirements.
    3
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Agent-native cold-email infrastructure providing ~12 high-level tools for domain setup, mailbox provisioning, campaign launch, inbox management, and metrics, all operated via MCP or CLI.
    28
    1
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Provides IMAP and SMTP capabilities, enabling developers to manage email services with seamless integration and automated workflows.
    21
    4,010 PyPI
    377
    BSD 3-Clause
  • A
    license
    A
    quality
    A
    maintenance
    Read and write email through the Atomic Mail from an AI agent. Handles proof-of-work authentication and JMAP so the agent thinks in JMAP method calls. Use when the user asks to register an email inbox, list mailboxes, fetch or send email.
    3
    49 npm
    268
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    Enables sending emails via SMTP with template management, supporting multiple SMTP configurations, template creation with variable substitution, and bulk email sending with rate limiting.
    6
    460 npm
    25
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Enables finding and verifying work emails for contacts through a waterfall of provider keys, with per-provider cost attribution and verification after each finder.
    1
    100 npm
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    A multi-service email platform for MCP-compatible clients that supports standard email providers, transactional APIs, and local testing environments. It enables users to send and receive emails, monitor service health, and integrate with messaging webhooks like Slack and Discord through natural language commands.
    10
    4
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables AI agents to send, receive, and reply to email through dedicated thread-aware mailboxes, with sandbox testing and compatibility across MCP clients.
    9
    38 npm
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Enables agents to search, read, and draft email over IMAP and SMTP, including attachments and OAuth, with sending disabled by default and restricted to allowlisted recipients when enabled.
    6
    Apache 2.0
  • A
    license
    A
    quality
    A
    maintenance
    MCP server for SentVia that provides email infrastructure for AI agents, enabling them to create inboxes, send, reply, forward, search messages, manage drafts, domains, webhooks, and allow/block rules through 21 tools.
    21
    97 npm
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables agents to validate email addresses through RFC 5321 syntax checks, MX record lookups, a 182,000-domain disposable blacklist, role-account detection, and an optional SMTP handshake. Runs locally via npx or as a hosted HTTP endpoint, returning explainable per-check scores at zero per-lookup API cost.
    4
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Email for AI agents. Create inboxes, send and receive emails without phone or CAPTCHA. Inboxes are server-readable, not end-to-end encrypted.
    21
    133 npm
    MIT
  • A
    license
    B
    quality
    A
    maintenance
    Official MCP server for Ballast: connect AI agents to manage cold email campaigns, deliverability warmup, lead lists, and inbox replies.
    30
    1
    MIT
  • A
    license
    B
    quality
    A
    maintenance
    Enables read-only search and retrieval of your email across multiple IMAP accounts through a local notmuch index, served over authenticated HTTP for MCP clients like Claude or Codex.
    11
    19
    MIT
  • A
    license
    B
    quality
    A
    maintenance
    Enables multi-account email management with AI-powered monitoring, intelligent filtering, and automated notifications across multiple platforms including Gmail, Outlook, QQ Mail, and 163 Mail.
    29
    48
    MIT