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chinatelecom-h.com · 🇨🇳 CN · communication-services
Scan week: 2026-03-02
global
#637 / 1090
country CN
#25 / 98
index sse-50
#12 / 50
index hang-seng
#33 / 89
sector communication-services
#26 / 45
No DKIM key detected for this domain
Upgrade DMARC policy from quarantine to reject for full protection
Deploy MTA-STS to enforce TLS for inbound email
Add a TLS-RPT record to receive TLS failure reports
Enable DNSSEC for your domain to improve DNS security
Each company in the Observatory is analyzed weekly for email authentication standards. The audit provides a comprehensive view of the company's email security posture.
What this page shows:
Q: How is the score calculated?
A: Points are awarded for each standard based on configuration quality, totaling up to 100.
Q: What do the grades mean?
A: A+ is excellent (90-100), F indicates significant gaps (below 50).
| Page | Purpose |
|---|---|
| Observatory Dashboard | Overall overview with key metrics |
| Statistics | Cross-index and cross-sector comparison |
| Email Domain Check | Audit your own domain |