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81,811 servers. Updated
20 Best Email MCP Servers: compared and ranked, September 2026Ranked from 2,148 matching servers on stars, growth, downloads and maintenance. Updated .

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    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
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    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
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    A
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    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
    234
    19
    MIT
  • A
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    quality
    D
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    Dynamic QR code platform for AI agents. Create, customize, and track QR codes without regenerating images. 37 tools covering 11 QR types (URL, vCard, WiFi, event…).
    37
    2
    MIT
  • A
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    quality
    C
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    Enables interaction with the Buttondown newsletter API for managing emails, subscribers, and tags.
    15
    41
    1
    MIT
  • A
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    quality
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    Enables AI and LLM systems to interact with the Buttondown newsletter service, supporting email drafting, scheduling, analytics retrieval, and list management through a Model Context Protocol interface.
    4
    1
    MIT
  • A
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    quality
    D
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    Enables sending transactional emails through GetMailer from AI assistants. Supports email operations, template management, domain verification, analytics, suppression lists, and batch email jobs.
    14
    24
    MIT
  • A
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    Enables interaction with the XEM Email API to send emails, manage campaigns, and organize contact lists. It supports features like HTML content, scheduling, template management, and bulk contact imports from CSV files.
    7
    19
    MIT
  • A
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    Combines Bing Webmaster data, GA4 AI-traffic opportunity matching, technical SEO scanning, AI-search content audits, approval-gated WordPress fix preparation, live verification, Bing URL submission, and IndexNow integration to help marketers improve pages for human readers and AI search.
    46
    1
    MIT
  • A
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    B
    quality
    F
    maintenance
    MCP server for HubSpot CRM — 33 tools covering contacts, companies, deals, pipelines, lists, marketing emails, forms, workflows, and properties.
    30
    14
    MIT
  • A
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    quality
    C
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    A production-grade MCP server that integrates with the Mailchimp Marketing API to manage campaigns, audiences, members, and reports. It provides 28 specialized tools for automating marketing tasks such as sending emails, managing subscriber tags, and analyzing performance data.
    71
    1
    MIT
  • A
    license
    B
    quality
    B
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    Enables sending transactional emails, managing templates, suppression lists, sending domains, webhooks, subaccounts, and retrieving account metrics via the SparkPost API.
    20
    23
    MIT
  • F
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    B
    quality
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    Enables an AI assistant to list and fetch ad campaign data from a REST API, with error handling for missing records or unreachable services.
    2
  • A
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    B
    quality
    F
    maintenance
    GEO (Generative Engine Optimisation). This tool shows you exactly how AI search engines see your content - claim density, writing quality, E-E-A-T signals, extractability. Research-backed metrics that correlate with 40% higher AI citation rates.
    2
    87
    21
    MIT
  • F
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    B
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    Enables sending emails and managing webhooks through the SendLayer API. Supports plain text and HTML emails with attachments, CC/BCC recipients, and webhook event management for email delivery tracking.
    5