How are companies within an index scored?

Each company's primary domain is analyzed for SPF, DKIM, DMARC, BIMI, MTA-STS, DANE/TLSA and DNSSEC. Points are awarded for each standard based on its quality and strictness, totaling up to 100.

What does the grade distribution tell me?

The grade distribution shows the spread of scores across all companies in the index. If most companies score A or A+, the index has strong overall email security. A wide spread from A+ to F indicates significant variation.

Why might a well-known company score poorly?

Email security configuration is often managed independently from other cybersecurity controls. A company may have strong network security but still lack proper DMARC enforcement or MTA-STS deployment.

How often are scores updated?

All domains are rescanned weekly. Changes in DNS records are reflected in the next weekly scan.

SSE 50 - Email Security Scores

		Country		Grade	DMARC	SPF	BIMI	MTA-STS	DANE-TLSA	DNSSEC
1	Jiangsu Hengrui Pharmaceuticalshengrui.com	🇨🇳 China	56	C	none	~all	✗	✗	✗	✓
2	Agricultural Bank of Chinaabchina.com	🇨🇳 China	53	C	reject	-all	✗	✗	✗	✗
3	LONGi Green Energylongi.com	🇨🇳 China	51	C	none	-all	✗	✗	✗	✗
4	Foxconn Industrial Internetfii-foxconn.com	🇨🇳 China	50	C	none	-all	✗	✗	✗	✗
5	Sinopecsinopec.com	🇨🇳 China	49	D	reject	-all	✗	✗	✗	✗
6	Zijin Miningzijinmining.com	🇨🇳 China	48	D	none	-all	✗	✗	✗	✗
7	Wanhua Chemicalwhchem.com	🇨🇳 China	48	D	none	-all	✗	✗	✗	✗
8	China Merchants Bankcmbchina.com	🇨🇳 China	48	D	none	-all	✗	✗	✗	✗
9	China Construction Bankccb.com	🇨🇳 China	48	D	none	-all	✗	✗	✗	✗
10	COSCO Shippingcoscoshipping.com	🇨🇳 China	47	D	none	-all	✗	✗	✗	✗
11	Nongfu Springnongfuspring.com	🇨🇳 China	46	D	none	-all	✗	✗	✗	✗
12	WuXi AppTecwuxiapptec.com	🇨🇳 China	45	D	none	~all	✗	✗	✗	✗
13	China Telecomchinatelecom-h.com	🇨🇳 China	43	D	quarantine	-all	✗	✗	✗	✗
14	ICBCicbc.com.cn	🇨🇳 China	40	D	—	-all	✗	✗	✗	✗
15	China Yangtze Powercypc.com.cn	🇨🇳 China	38	D	reject	-all	✗	✗	✗	✗
16	CRRC Corporationcrrcgc.cc	🇨🇳 China	38	D	none	-all	✗	✗	✗	✗
17	Inner Mongolia Yiliyili.com	🇨🇳 China	37	D	—	~all	✗	✗	✗	✗
18	Shanghai Pudong Development Bankspdb.com.cn	🇨🇳 China	35	D	—	-all	✗	✗	✗	✗
19	CMOC Groupcmoc.com	🇨🇳 China	33	D	none	-all	✗	✗	✗	✗
20	East Money Informationeastmoney.com	🇨🇳 China	32	D	none	-all	✗	✗	✗	✗
21	China Life Insurancechinalife.com.cn	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
22	China Pacific Insurancecpic.com.cn	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
23	China Unicom (China)chinaunicom.com.cn	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
24	China State Constructioncscec.com	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
25	Ping An Insurance (China)pingan.com	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
26	Poly Developmentspolycn.com	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
27	CNOOCcnooc.com.cn	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
28	Kweichow Moutaimoutai.com.cn	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
29	Haier Smart Homehaier.com	🇨🇳 China	29	F	—	-all	✗	✗	✗	✗
30	Wuliangyewuliangye.com.cn	🇨🇳 China	26	F	—	~all	✗	✗	✗	✗
31	SMICsmics.com	🇨🇳 China	26	F	—	~all	✗	✗	✗	✗
32	CITIC Securitiescitics.com	🇨🇳 China	26	F	—	~all	✗	✗	✗	✗
33	PetroChinapetrochina.com.cn	🇨🇳 China	26	F	—	~all	✗	✗	✗	✗
34	Bank of Chinaboc.cn	🇨🇳 China	25	F	quarantine	-all	✗	✗	✗	✗
35	Bank of Communicationsbankcomm.com	🇨🇳 China	23	F	—	-all	✗	✗	✗	✗
36	Industrial Bankcib.com.cn	🇨🇳 China	23	F	—	-all	✗	✗	✗	✗
37	Postal Savings Bank of Chinapsbc.com	🇨🇳 China	23	F	—	-all	✗	✗	✗	✗
38	Chongqing Sokonsokon.com	🇨🇳 China	23	F	—	-all	✗	✗	✗	✗
39	China State Shipbuildingcssc.net.cn	🇨🇳 China	23	F	—	-all	✗	✗	✗	✗
40	SANY Heavy Industrysany.com.cn	🇨🇳 China	20	F	—	~all	✗	✗	✗	✗
41	Cambricon Technologiescambricon.com	🇨🇳 China	15	F	—	-all	✗	✗	✗	✗
42	Great Wall Motorgwm.com.cn	🇨🇳 China	14	F	—	—	✗	✗	✗	✗
43	China Railway Groupcrec.cn	🇨🇳 China	14	F	—	—	✗	✗	✗	✗
44	Nari Technologynaritech.cn	🇨🇳 China	8	F	—	—	✗	✗	✗	✗
45	China Shenhua Energycsec.com	🇨🇳 China	8	F	—	—	✗	✗	✗	✗
46	China Tourism Group Duty Freectgdutyfree.com.cn	🇨🇳 China	0	F	—	—	✗	✗	✗	✗
47	Foshan Haitian Flavouringhaitian-food.com	🇨🇳 China	0	F	—	—	✗	✗	✗	✗
48	China Northern Rare Earthreht.com	🇨🇳 China	0	F	—	—	✗	✗	✗	✗
49	Beijing-Shanghai High Speed Railwaycr-jh.cn	🇨🇳 China	0	F	—	—	✗	✗	✗	✗
50	Will Semiconductorwillsemi.com	🇨🇳 China	0	F	—	—	✗	✗	✗	✗

Grade

Jiangsu Hengrui Pharmaceuticalshengrui.com

Agricultural Bank of Chinaabchina.com

LONGi Green Energylongi.com

Foxconn Industrial Internetfii-foxconn.com

Sinopecsinopec.com

Zijin Miningzijinmining.com

Wanhua Chemicalwhchem.com

China Merchants Bankcmbchina.com

China Construction Bankccb.com

COSCO Shippingcoscoshipping.com

Nongfu Springnongfuspring.com

WuXi AppTecwuxiapptec.com

China Telecomchinatelecom-h.com

ICBCicbc.com.cn

China Yangtze Powercypc.com.cn

CRRC Corporationcrrcgc.cc

Inner Mongolia Yiliyili.com

Shanghai Pudong Development Bankspdb.com.cn

CMOC Groupcmoc.com

East Money Informationeastmoney.com

China Life Insurancechinalife.com.cn

China Pacific Insurancecpic.com.cn

China Unicom (China)chinaunicom.com.cn

China State Constructioncscec.com

Ping An Insurance (China)pingan.com

Poly Developmentspolycn.com

CNOOCcnooc.com.cn

Kweichow Moutaimoutai.com.cn

Haier Smart Homehaier.com

Wuliangyewuliangye.com.cn

SMICsmics.com

CITIC Securitiescitics.com

PetroChinapetrochina.com.cn

Bank of Chinaboc.cn

Bank of Communicationsbankcomm.com

Industrial Bankcib.com.cn

Postal Savings Bank of Chinapsbc.com

Chongqing Sokonsokon.com

China State Shipbuildingcssc.net.cn

SANY Heavy Industrysany.com.cn

Cambricon Technologiescambricon.com

Great Wall Motorgwm.com.cn

China Railway Groupcrec.cn

Nari Technologynaritech.cn

China Shenhua Energycsec.com

China Tourism Group Duty Freectgdutyfree.com.cn

Foshan Haitian Flavouringhaitian-food.com

China Northern Rare Earthreht.com

Beijing-Shanghai High Speed Railwaycr-jh.cn

Will Semiconductorwillsemi.com

Understanding index-level analysis

A stock index groups the largest companies in a market. Analyzing their email security provides a representative snapshot of how a country's or region's corporate sector protects against email-based threats.

What this page shows:

Average score - The mean email security score across all constituent companies
Grade distribution - How many companies fall into each grade bracket (A+ through F)
Company table - Individual scores, grades and key indicator status for each company
Sector breakdown - How different industries within the index compare

Key standards tracked

Each company is evaluated on:

SPF - Is the sending policy properly configured? Does it use -all (hard fail)?
DKIM - Are signing keys published and strong enough (2048-bit minimum)?
DMARC - Is a policy in place? Is it set to quarantine or reject?
BIMI - Is the brand logo published for inbox display?
MTA-STS - Is inbound email transport encryption enforced?
DNSSEC - Is the DNS zone signed to prevent spoofing?

FAQ - Frequently asked questions

Q: How are companies scored?

A: Each domain is analyzed for email authentication standards and awarded up to 100 points across three pillars.

Q: What does the grade distribution show?

A: The spread of scores from A+ to F, indicating overall index maturity.

Q: Can I compare indices?

A: Yes, via the Statistics page.

Page	Purpose
Observatory Dashboard	Overall overview with key metrics
Statistics	Cross-index and cross-sector comparison
Email Domain Check	Audit your own domain

🇨🇳 SSE 50 Email Security

Company

Understanding index-level analysis

Key standards tracked

FAQ - Frequently asked questions

Related pages