How do Auth Posture — Email Deliverability & Spoofability Audit alternatives differ in installation and runtime?

Auth Posture — Email Deliverability & Spoofability Audit and its alternatives vary by runtime requirement (Node.js/npx, Python/uvx, Docker, or remote HTTP/SSE endpoints). Check the specification comparison table above to verify command requirements before installing.

Communication• MCP Alternatives Guide

Best Alternatives to Auth Posture — Email Deliverability & Spoofability Audit

Q: What is the best alternative to Auth Posture — Email Deliverability & Spoofability Audit?

The top-rated alternatives to Auth Posture — Email Deliverability & Spoofability Audit in the Communication category include E2a — email for AI agents, MAILTYPE — Email Domain Capability Intelligence, Line Bot MCP Server. These servers offer complementary or alternative capabilities depending on your deployment stack and authentication requirements.

Q: Are alternatives to Auth Posture — Email Deliverability & Spoofability Audit free and open source?

Most MCP servers listed on AllMCPs are open source tools under MIT or Apache licenses that you can self-host or run locally with Claude Desktop, Cursor, VS Code, or Windsurf.

Q: How do I side-by-side compare Auth Posture — Email Deliverability & Spoofability Audit with a specific alternative?

Click the "Compare side-by-side →" button on any alternative card to see an in-depth comparison matrix covering feature lists, stars, npm downloads, install configurations, and schema specifications.

Looking for an alternative to Auth Posture — Email Deliverability & Spoofability Audit? Whether you need a different runtime environment, custom authentication support, or alternative API integrations in the Communication ecosystem, we have cataloged and compared the top alternative MCP servers below.

Browse all Communication servers →View Auth Posture — Email Deliverability & Spoofability Audit Specs →

Target Reference Server

Auth Posture — Email Deliverability & Spoofability Audit Overview

One-call domain audit: MX receiving, SPF/DMARC/DKIM spoofing protection, disposable-address risk.

Specification Matrix: Auth Posture — Email Deliverability & Spoofability Audit vs Alternatives

Server Name	Runtime	Auth	Pricing	GitHub Stars	Downloads	Action
A Auth Posture — Email Deliverability & Spoofability Audit (Target)	—	Free/None	Free	—	—	Current
E2a — email for AI agents	uvx	Free/None	Free	191	—	Compare →
MAILTYPE — Email Domain Capability Intelligence	Remote (SSE)	Free/None	Free	—	—	Compare →
Line Bot MCP Server	npx	API key	Free	783	—	Compare →
Emailmd	npx	No auth required	Free	1,379	—	Compare →
Atomic Mail	npx	Free/None	Free	264	—	Compare →
Mail7 Email Validation	npx	Free/None	Free	—	—	Compare →
Google Workspace	npx	Free/None	Free	186	—	Compare →
Lumail	npx	Free/None	Free	2	—	Compare →
Email Spam Tester	Remote (SSE)	No auth required	Free	—	—	Compare →
ARBuilder	npx	API key	Freemium	24	—	Compare →
Telnyx	—	Free/None	Free	198	—	Compare →
Telegram MCP	npx	API key	Free	348	—	Compare →

Detailed Evaluation of Auth Posture — Email Deliverability & Spoofability Audit Alternatives

E2a — email for AI agents

Runtime: uvx

Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.

1 0 191

Compare side-by-side

MAILTYPE — Email Domain Capability Intelligence

Runtime: Remote (SSE)

Email-domain intelligence: MX capability, provider, disposable status, SPF, DMARC, and MTA-STS.

1 0

Compare side-by-side

Line Bot MCP Server

Runtime: npx

Verified

Connects an AI agent to LINE Messaging API for messaging, user profiles, quotas, followers, and rich-menu management.

Key Features:

Push text and Flex messages

Broadcast messages to followers

Retrieve user profiles and follower IDs

14 0 783

Compare side-by-side

Emailmd

Runtime: npx

Render, lint, and preview markdown emails through MCP using hosted HTTP or local stdio transport.

Key Features:

Markdown-to-email-safe HTML rendering

Plain-text email output

Deliverability linting

2 0 1,379

Compare side-by-side

Atomic Mail

Runtime: npx

Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

1 0 264

Compare side-by-side

Mail7 Email Validation

Runtime: npx

Verify email addresses, clean lists, and audit a domain SPF, DKIM, DMARC and MX setup.

1 0

Compare side-by-side

Google Workspace

Runtime: npx

Give AI agents access to Gmail, Calendar, Drive, and more — multi-account, manifest-driven

1 0 186

Compare side-by-side

Lumail

Runtime: npx

Official Lumail email marketing MCP for campaigns, subscribers, and workflows.

1 0 2

Compare side-by-side

Email Spam Tester

Runtime: Remote (SSE)

Verified

Tests delivered email with SPF, DKIM, DMARC, blocklist, spam-engine, and bulk-sender checks.

Key Features:

Disposable test address reservation

Asynchronous report waiting

42 email deliverability checks

5 0

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ARBuilder

Runtime: npx

AI-powered MCP server generating Stylus smart contracts, cross-chain SDKs, full-stack dApps, and Orbit chain deployment tools for Arbitrum.

Key Features:

RAG-based retrieval over Arbitrum docs and code examples

Stylus contract generation, testing, debugging, and validation

Cross-chain bridge and messaging code generation

2 0 24

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Telnyx

Runtime not confirmed

Official TypeScript library for the Telnyx API

1 0 198

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Telegram MCP

Runtime: npx

Connects AI assistants to Telegram for account data, dialogs, messages, read status, and draft replies.

Key Features:

Retrieve current account information

List dialogs with unread filtering

Fetch messages from a dialog

2 0 348

Compare side-by-side

Best Alternatives to Auth Posture — Email Deliverability & Spoofability Audit

Auth Posture — Email Deliverability & Spoofability Audit Overview

Specification Matrix: Auth Posture — Email Deliverability & Spoofability Audit vs Alternatives

Detailed Evaluation of Auth Posture — Email Deliverability & Spoofability Audit Alternatives

Frequently Asked Questions: Auth Posture — Email Deliverability & Spoofability Audit Alternatives