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Dimensione2a MCP ServerAuthenticated email gateway for AI agentsGitHub MCP ServerGitHub's official MCP server for managing repos, issues, PRs, and workflows via natural language
FMRS42 / 100 · D76 / 100 · B
Reliability4 / 2013 / 20
Security and permissions5 / 2014 / 20
Maintenance8 / 2018 / 20
Documentation13 / 2017 / 20
Setup experience12 / 2014 / 20
Best for
  • Developers building AI agents that need to communicate with humans or other agents
  • Teams that need to receive email from behind firewalls or on laptops without public URLs
  • Use cases requiring authenticated email delivery (SPF/DKIM/DMARC)
  • Organizations that want to review outbound email before sending
  • Teams that want an AI assistant to directly operate on GitHub repos and collaboration workflows
  • Users already in the GitHub Copilot ecosystem who want a zero-deployment remote option
Not for
  • Users who need a full MTA like Postfix or Postal
  • Users who only need simple email sending without external dependencies
  • Scenarios requiring advanced deliverability management like bounce handling and analytics
  • Scenarios where you don't want the assistant to have write access to repos (enable only read-only toolsets)
  • Environments with strict network isolation for private repos that can't reach the official remote endpoint
Required permissions
  • Read and send email
  • Manage agents, domains, and webhooks
  • Manage human approvals (approve/reject)
  • Requires API key or OAuth authorization
  • Requires DNS TXT verification for custom domains
  • A personal access token (PAT) or OAuth App token; effective scope depends on the token's own permissions
  • Enabling toolsets like actions/issues/pull_requests grants write access — request tokens on a least-privilege basis
Risks and side effects
  • Misuse of API keys could lead to unauthorized email access
  • Inbound emails may contain prompt injection or phishing attempts
  • Improper webhook signature verification could be spoofed
  • Dependency on external service availability
  • Write toolsets (creating/merging PRs, triggering workflows) can cause accidental changes if the token is overscoped — try a read-only toolset first
  • In hosted mode, credentials travel via the Authorization header — make sure the client-to-api.githubcopilot.com connection is trusted
Supported clientsClaude Desktop, Cursor, Cline, Google ADK, LangChain, OpenAI Agents SDK, Zed, Goose, WindsurfClaude Desktop, Claude Code, VS Code, Cursor, Windsurf, JetBrains IDEs, Zed, Amp
Tools1415