Which MCP Server Should You Choose?
A
Choose Auth Posture — Email Deliverability & Spoofability Audit when:
- You need dedicated capabilities in the Communication domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
Choose Email Spam Tester when:
- You need dedicated capabilities in the Communication domain.
- You prefer remote streaming HTTP/SSE transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: Disposable test address reservation, Asynchronous report waiting, 42 email deliverability checks.