EMAIL-007: Inbound Gateway Configuration
- Platform
- Google Workspace
- Category
- Advanced Threat Protection
- Severity
- Medium
- Zero Trust pillar
- Applications & Workloads (weight 1)
- Golden fixtures
- 1
- Branch coverage
- Observed: fixtures prove the verdicts they exercise
- Provenance
- baseline
What it checks
Inbound email gateways should be properly configured to preserve sender authentication results. Misconfigured gateways can strip SPF/DKIM/DMARC headers or bypass security filtering
Recommended value
Inbound gateways configured with correct IP ranges and header preservation
Remediation
Admin Console > Apps > Google Workspace > Gmail > Spam, phishing and malware > Inbound gateway > Verify gateway IPs and that authentication headers are preserved
Fixture-proven verdicts
Every verdict below is proven by a golden fixture in the module's gating test suite. This table derives from the last green run; it cannot be edited by hand.
| Scenario | Expected verdict |
|---|---|
| always-warn | WARN |
Framework mappings
- NIST SP 800-53
- SI-8, SC-7
- CIS Benchmark
- 2.7
- MITRE ATT&CK
- T1566.001, T1566.002
Zero analytics. Zero tracking. Zero cookies. This site makes no external requests, so there is nothing to consent to.
Guerrilla is free and open source. · Validation
Guerrilla is written and maintained by Jim Tyler. This copy lives on jimtyler.org; the project also publishes at guerrilla.army.