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.

🇰🇷 KOSPI 200 Email Security

Weekly audit of email security across 112 companies in the KOSPI 200.

Korea Exchange · 112 companies analysed · Scan week: 2026-03-23

Companies listed in the KOSPI 200 score an average of 24/100 for email security this week.
0% of KOSPI 200 companies achieve a grade of A+ or A in email authentication, while 98% receive a D or F.
The average score of 24 is 18 points below the global average of 42, suggesting room for improvement in email authentication.
41.1% of KOSPI 200 companies have deployed DMARC email authentication, and 2.7% enforce a strict reject policy to block spoofed emails.
SPF record deployment stands at 76%, authorizing legitimate sending servers and helping prevent email spoofing.
0% of companies have configured BIMI to display their verified brand logo in supported email clients.
0% enforce TLS encryption for inbound email delivery via MTA-STS, protecting against downgrade attacks.
DNSSEC is enabled on 0.9% of KOSPI 200 domains, adding cryptographic validation to DNS queries.
Doosan Enerbility leads the KOSPI 200 with a top score of 52/100 (C).
Hyundai Department Store has the lowest score at 0/100, indicating significant gaps in email security configuration.
Scores range from 0 to 52 with a median of 26, reflecting varied levels of email security maturity across the index.

Average score

24/ 100

DMARC reject

2.7%

BIMI configured

MTA-STS enforce

DNSSEC enabled

0.9%

A+

Average

Median

Min

Max

Company

		Country		Grade	DMARC	SPF	BIMI	MTA-STS	DANE-TLSA	DNSSEC
1	Doosan Enerbilitydoosan-enerbility.com	🇰🇷 South Korea	52	C	—	~all	✗	✗	✗	✓
2	Celltrioncelltrion.com	🇰🇷 South Korea	51+2	C	reject	~all	✗	✗	✗	✗
3	HMMhmm21.com	🇰🇷 South Korea	49	D	none	-all	✗	✗	✗	✗
4	Doosan Bobcatbobcat.com	🇰🇷 South Korea	49	D	none	-all	✗	✗	✗	✗
5	Emartemart.com	🇰🇷 South Korea	47	D	none	~all	✗	✗	✗	✗
6	Cowaycoway.com	🇰🇷 South Korea	47	D	none	~all	✗	✗	✗	✗
7	Daewoong Pharmaceuticaldaewoong.co.kr	🇰🇷 South Korea	47	D	none	~all	✗	✗	✗	✗
8	Daewoongdaewoong.co.kr	🇰🇷 South Korea	47	D	none	~all	✗	✗	✗	✗
9	KTkt.com	🇰🇷 South Korea	46	D	none	-all	✗	✗	✗	✗
10	SK Telecomsktelecom.com	🇰🇷 South Korea	46	D	none	-all	✗	✗	✗	✗
11	POSCOposco.com	🇰🇷 South Korea	45	D	quarantine	~all	✗	✗	✗	✗
12	Hybehybe.com	🇰🇷 South Korea	45	D	none	~all	✗	✗	✗	✗
13	Korea Gaskogas.or.kr	🇰🇷 South Korea	45	D	none	-all	✗	✗	✗	✗
14	Samsung Electronicssamsung.com	🇰🇷 South Korea	44	D	none	~all	✗	✗	✗	✗
15	Kakaokakao.com	🇰🇷 South Korea	44	D	none	~all	✗	✗	✗	✗
16	LG CNSlgcns.com	🇰🇷 South Korea	42	D	none	~all	✗	✗	✗	✗
17	Kraftonkrafton.com	🇰🇷 South Korea	42	D	none	-all	✗	✗	✗	✗
18	Industrial Bank of Koreaibk.co.kr	🇰🇷 South Korea	42	D	none	-all	✗	✗	✗	✗
19	LG Displaylgdisplay.com	🇰🇷 South Korea	39	D	none	~all	✗	✗	✗	✗
20	Hanwha Lifehanwhalife.com	🇰🇷 South Korea	39	D	none	-all	✗	✗	✗	✗
21	Amorepacific Holdingsamorepacific.com	🇰🇷 South Korea	38	D	none	-all	✗	✗	✗	✗
22	Amorepacificamorepacific.com	🇰🇷 South Korea	38	D	none	-all	✗	✗	✗	✗
23	Korean Airkoreanair.com	🇰🇷 South Korea	37	D	none	~all	✗	✗	✗	✗
24	Shinsegaeshinsegae.com	🇰🇷 South Korea	37	D	none	~all	✗	✗	✗	✗
25	Hanwhahanwha.com	🇰🇷 South Korea	37	D	none	~all	✗	✗	✗	✗
26	Nongshimnongshim.com	🇰🇷 South Korea	37	D	none	~all	✗	✗	✗	✗
27	KCCkcc.co.kr	🇰🇷 South Korea	37	D	—	~all	✗	✗	✗	✗
28	LG Chemlgchem.com	🇰🇷 South Korea	37	D	—	~all	✗	✗	✗	✗
29	KakaoBankkakaobank.com	🇰🇷 South Korea	36	D	—	-all	✗	✗	✗	✗
30	LGlg.com	🇰🇷 South Korea	36	D	none	~all	✗	✗	✗	✗
31	LG Electronicslg.com	🇰🇷 South Korea	36	D	none	~all	✗	✗	✗	✗
32	Navernaver.com	🇰🇷 South Korea	36	D	none	~all	✗	✗	✗	✗
33	Doosandoosan.com	🇰🇷 South Korea	35	D	none	-all	✗	✗	✗	✗
34	KB Financialkbfg.com	🇰🇷 South Korea	35	D	none	-all	✗	✗	✗	✗
35	GS Retailgsretail.com	🇰🇷 South Korea	34	D	none	~all	✗	✗	✗	✗
36	Cheil Worldwidecheil.com	🇰🇷 South Korea	34	D	—	-all	✗	✗	✗	✗
37	KEPCOkepco.co.kr	🇰🇷 South Korea	34	D	none	-all	✗	✗	✗	✗
38	Ottogiottogi.co.kr	🇰🇷 South Korea	34	D	none	~all	✗	✗	✗	✗
39	Netmarblenetmarble.net	🇰🇷 South Korea	34	D	quarantine	~all	✗	✗	✗	✗
40	Hyundai Mobismobis.co.kr	🇰🇷 South Korea	33	D	—	~all	✗	✗	✗	✗
41	OCI Holdingsoci.co.kr	🇰🇷 South Korea	33-14	D	none	-all	✗	✗	✗	✗
42	Kiakia.com	🇰🇷 South Korea	32	D	none	~all	✗	✗	✗	✗
43	Samsung Lifesamsunglife.com	🇰🇷 South Korea	32	D	none	-all	✗	✗	✗	✗
44	Samyang Foodssamyangfoods.com	🇰🇷 South Korea	31	D	none	~all	✗	✗	✗	✗
45	HiteJinrohitejinro.com	🇰🇷 South Korea	31	D	—	~all	✗	✗	✗	✗
46	Dongsuhdongsuh.com	🇰🇷 South Korea	29	F	—	-all	✗	✗	✗	✗
47	NCSoftncsoft.com	🇰🇷 South Korea	29	F	none	-all	✗	✗	✗	✗
48	Orion Holdingsorionworld.com	🇰🇷 South Korea	29	F	—	-all	✗	✗	✗	✗
49	Poongsanpoongsan.co.kr	🇰🇷 South Korea	29	F	—	-all	✗	✗	✗	✗
50	Lotte Chemicallottechem.com	🇰🇷 South Korea	29	F	—	-all	✗	✗	✗	✗
51	Samsung Cardsamsungcard.com	🇰🇷 South Korea	29	F	none	~all	✗	✗	✗	✗
52	SK Hynixskhynix.com	🇰🇷 South Korea	29	F	—	-all	✗	✗	✗	✗
53	SKsk.com	🇰🇷 South Korea	28	F	—	~all	✗	✗	✗	✗
54	Yuhanyuhan.co.kr	🇰🇷 South Korea	28	F	—	~all	✗	✗	✗	✗
55	Samsung Electro-Mechanicssem.samsung.com	🇰🇷 South Korea	27	F	none	-all	✗	✗	✗	✗
56	Hyundai Glovisglovis.net	🇰🇷 South Korea	26	F	—	~all	✗	✗	✗	✗
57	Cosmaxcosmax.com	🇰🇷 South Korea	26	F	—	~all	✗	✗	✗	✗
58	S-Oils-oil.com	🇰🇷 South Korea	26	F	—	~all	✗	✗	✗	✗
59	LIG Nex1lignex1.com	🇰🇷 South Korea	26	F	—	~all	✗	✗	✗	✗
60	CJ Logisticscj-logistics.com	🇰🇷 South Korea	26	F	—	~all	✗	✗	✗	✗
61	Green Crossgreencross.com	🇰🇷 South Korea	25	F	reject	-all	✗	✗	✗	✗
62	Green Cross Holdingsgreencross.com	🇰🇷 South Korea	25	F	reject	-all	✗	✗	✗	✗
63	Kolon Industrieskolongroup.com	🇰🇷 South Korea	23	F	—	-all	✗	✗	✗	✗
64	KT&Gktng.com	🇰🇷 South Korea	23	F	—	-all	✗	✗	✗	✗
65	Samsung C&Tsamsungct.com	🇰🇷 South Korea	23	F	—	-all	✗	✗	✗	✗
66	Hyundai Steelhyundaisteel.com	🇰🇷 South Korea	23	F	—	-all	✗	✗	✗	✗
67	Lotte Chilsunglottechilsung.com	🇰🇷 South Korea	23	F	—	-all	✗	✗	✗	✗
68	Dongwon Industriesdongwon.com	🇰🇷 South Korea	23	F	—	-all	✗	✗	✗	✗
69	F&Ffnf.co.kr	🇰🇷 South Korea	23	F	—	-all	✗	✗	✗	✗
70	Hyundai Motorhyundai.com	🇰🇷 South Korea	21	F	none	~all	✗	✗	✗	✗
71	Samsung SDSsamsungsds.com	🇰🇷 South Korea	21	F	none	~all	✗	✗	✗	✗
72	Lotte Shoppinglotteshopping.com	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
73	SKCskc.co.kr	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
74	SK Innovationskinnovation.com	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
75	Chong Kun Dangckdpharm.com	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
76	Lottelotte.com	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
77	LG Innoteklginnotek.com	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
78	Korea Aerospacekae.kr	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
79	Woori Financialwoorifg.com	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
80	Daesangdaesang.com	🇰🇷 South Korea	20	F	none	~all	✗	✗	✗	✗
81	Hotel Shillashilla.net	🇰🇷 South Korea	20	F	—	~all	✗	✗	✗	✗
82	Hyundai Marine & Firehmfire.com	🇰🇷 South Korea	15	F	—	-all	✗	✗	✗	✗
83	Orionorionworld.com	🇰🇷 South Korea	14-15	F	—	—	✗	✗	✗	✗
84	CJcj.co.kr	🇰🇷 South Korea	12	F	—	~all	✗	✗	✗	✗
85	Hanwha Solutionshanwhasolutions.com	🇰🇷 South Korea	12	F	—	~all	✗	✗	✗	✗
86	Doosan Roboticsdoosanrobotics.com	🇰🇷 South Korea	12	F	—	—	✗	✗	✗	✗
87	GS E&Cgsec.co.kr	🇰🇷 South Korea	8	F	—	—	✗	✗	✗	✗
88	Shinhan Financialshinhanbank.com	🇰🇷 South Korea	8	F	—	—	✗	✗	✗	✗
89	Kangwon Landkangwonland.co.kr	🇰🇷 South Korea	8	F	—	—	✗	✗	✗	✗
90	Samsung Heavy Industriessamsungheavyindustries.com	🇰🇷 South Korea	8	F	—	—	✗	✗	✗	✗
91	Samsung Biologicssamsungbiologics.com	🇰🇷 South Korea	1	F	—	~all	✗	✗	✗	✗
92	CJ CheilJedangcjcheiljedang.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
93	DB Insurancedbinsurance.co.kr	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
94	BGF Retailbgfretail.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
95	Samsung SDIsamsungsdi.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
96	HD Hyundai Heavy Industrieshdhhi.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
97	Samsung Fire & Marinesfmlife.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
98	HD Hyundaihd-hyundai.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
99	Hanssemhanssem.co.kr	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
100	Korea Zinckzc.co.kr	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
101	Hanmi Pharmhanmipharm.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
102	GSgsgroup.co.kr	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
103	Hana Financialhanafinancialgroup.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
104	LG Energy Solutionlgesenergy.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
105	LS Electriclselec.co.kr	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
106	BNK Financialbnkfinancial.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
107	Pan Oceanpanoceanus.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
108	KakaoPaykakaopay.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
109	LG Upluslguplus.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
110	POSCO Internationalposco-international.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
111	Hyundai E&Chyundaienc.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗
112	Hyundai Department Storehyundaidf.com	🇰🇷 South Korea	0	F	—	—	✗	✗	✗	✗

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

🇰🇷 KOSPI 200 Email Security

Company

Understanding index-level analysis

Key standards tracked

FAQ - Frequently asked questions

Related pages