Looking for an alternative to Domain Security? 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.
Audit a domain's email and web security: SPF, DKIM, DMARC, MTA-STS, DNSSEC, TLS, WHOIS. No API keys.
Direct comparison of key metrics, runtimes, authentication methods, and community popularity.
| Server Name | Runtime | Auth | Pricing | GitHub Stars | Downloads | Action |
|---|---|---|---|---|---|---|
D Domain Security (Target) | — | Free/None | Free | — | — | Current |
E E2a — email for AI agents | uvx | Free/None | Free | 191 | — | Compare → |
M MAILTYPE — Email Domain Capability Intelligence | Remote (SSE) | Free/None | Free | — | — | Compare → |
M Mail7 Email Validation | npx | Free/None | Free | — | — | Compare → |
T Telnyx | — | Free/None | Free | 198 | — | Compare → |
L Line Bot MCP Server | npx | API key | Free | 783 | — | Compare → |
E Emailmd | npx | No auth required | Free | 1,379 | — | Compare → |
L Lumail | npx | Free/None | Free | 2 | — | Compare → |
G Google Workspace | npx | Free/None | Free | 186 | — | Compare → |
D Domain Intel MCP | Remote (SSE) | Free/None | Free | 1 | — | Compare → |
E Email Spam Tester | Remote (SSE) | No auth required | Free | — | — | Compare → |
T Telegram MCP | npx | API key | Free | 348 | — | Compare → |
A ARBuilder | npx | API key | Freemium | 24 | — | Compare → |