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.

Nifty 50 - Email Security Scores

		Country		Grade	DMARC	SPF	BIMI	MTA-STS	DANE-TLSA	DNSSEC
1	Tata Consultancy Servicestcs.com	🇮🇳 India	78	B	reject	-all	✗	✗	✓	✓
2	Bajaj Finservbajajfinserv.in	🇮🇳 India	70	B	reject	-all	✓	✗	✗	✓
3	HDFC Bankhdfcbank.com	🇮🇳 India	70	B	reject	-all	✓	✗	✗	✓
4	SBI Life Insurancesbilife.co.in	🇮🇳 India	70	B	reject	~all	✗	✗	✗	✓
5	Tech Mahindratechmahindra.com	🇮🇳 India	69	C	reject	-all	✗	✗	✗	✓
6	HCL Technologieshcltech.com	🇮🇳 India	68	C	reject	-all	✗	✗	✗	✓
7	Ciplacipla.com	🇮🇳 India	67	C	reject	~all	✓	✗	✗	✓
8	NTPCntpc.co.in	🇮🇳 India	67	C	reject	-all	✗	✗	✗	✓
9	Wiprowipro.com	🇮🇳 India	66	C	quarantine	-all	✗	✗	✗	✓
10	Tata Steeltatasteel.com	🇮🇳 India	64	C	quarantine	-all	✗	✗	✗	✓
11	HDFC Life Insurancehdfclife.com	🇮🇳 India	62	C	reject	-all	✓	✗	✗	✓
12	Mahindra & Mahindramahindra.com	🇮🇳 India	61	C	quarantine	-all	✗	✗	✗	✓
13	Maruti Suzukimarutisuzuki.com	🇮🇳 India	59	C	quarantine	?all	✗	✗	✗	✓
14	Larsen & Toubrolarsentoubro.com	🇮🇳 India	59	C	reject	-all	✓	✗	✗	✗
15	Kotak Mahindra Bankkotak.com	🇮🇳 India	58	C	reject	-all	✗	✗	✗	✓
16	State Bank of Indiasbi.co.in	🇮🇳 India	56	C	reject	-all	✓	✗	✗	✗
17	Axis Bankaxisbank.com	🇮🇳 India	56	C	reject	-all	✓	✗	✗	✓
18	ICICI Bankicicibank.com	🇮🇳 India	55	C	reject	-all	✓	✗	✗	✗
19	Adani Enterprisesadanienterprises.com	🇮🇳 India	54	C	reject	-all	✗	✗	✗	✓
20	Adani Portsadaniports.com	🇮🇳 India	54	C	reject	-all	✗	✗	✗	✓
21	Eicher Motorseichermotors.com	🇮🇳 India	51	C	reject	~all	✗	✗	✗	✗
22	Infosysinfosys.com	🇮🇳 India	51	C	reject	-all	✗	✗	✗	✗
23	Power Grid Corporationpowergrid.in	🇮🇳 India	51	C	quarantine	-all	✗	✗	✗	✗
24	Apollo Hospitalsapollohospitals.com	🇮🇳 India	49	D	quarantine	-all	✗	✗	✗	✗
25	Tata Motorstatamotors.com	🇮🇳 India	49	D	reject	~all	✗	✗	✗	✗
26	BPCLbharatpetroleum.in	🇮🇳 India	49	D	reject	~all	✓	✗	✗	✗
27	IndusInd Bankindusind.com	🇮🇳 India	48	D	reject	-all	✓	✗	✗	✗
28	Bharti Airtelairtel.in	🇮🇳 India	44	D	quarantine	-all	✗	✗	✗	✗
29	Reliance Industriesril.com	🇮🇳 India	44	D	reject	-all	✗	✗	✗	✗
30	Coal Indiacoalindia.in	🇮🇳 India	44	D	quarantine	-all	✗	✗	✗	✗
31	Eternalzomato.com	🇮🇳 India	43	D	reject	-all	✗	✗	✗	✗
32	Dr. Reddy's Laboratoriesdrreddys.com	🇮🇳 India	41	D	reject	-all	✓	✗	✗	✗
33	ITCitcportal.com	🇮🇳 India	41	D	quarantine	~all	✗	✗	✗	✗
34	Sun Pharmaceuticalsunpharma.com	🇮🇳 India	41	D	reject	-all	✓	✗	✗	✗
35	Asian Paintsasianpaints.com	🇮🇳 India	41	D	reject	-all	✓	✗	✗	✗
36	Shriram Financeshriramfinance.in	🇮🇳 India	40	D	reject	~all	✗	✗	✗	✗
37	Hero MotoCorpheromotocorp.com	🇮🇳 India	40	D	quarantine	~all	✗	✗	✗	✗
38	Tata Consumer Productstataconsumer.com	🇮🇳 India	39	D	none	~all	✗	✗	✗	✗
39	Nestle Indianestle.in	🇮🇳 India	37	D	reject	~all	✗	✗	✗	✗
40	Bajaj Financebajajfinance.in	🇮🇳 India	23	F	—	-all	✗	✗	✗	✗
41	Trenttrentlimited.com	🇮🇳 India	18	F	reject	—	✗	✗	✗	✗
42	Hindustan Unileverhul.co.in	🇮🇳 India	18	F	reject	-all	✗	✗	✗	✗
43	Grasim Industriesgrasim.com	🇮🇳 India	14	F	—	—	✗	✗	✗	✗
44	Hindalco Industrieshindalco.com	🇮🇳 India	10	F	—	—	✗	✗	✗	✗
45	ONGCongcindia.com	🇮🇳 India	8	F	—	—	✗	✗	✗	✗
46	Bajaj Autobajajauto.com	🇮🇳 India	8	F	—	—	✗	✗	✗	✗
47	Britannia Industriesbritannia.co.in	🇮🇳 India	8	F	—	—	✗	✗	✗	✗
48	Titan Companytitancompany.in	🇮🇳 India	0	F	—	—	✗	✗	✗	✗
49	JSW Steeljswsteel.in	🇮🇳 India	0	F	—	—	✗	✗	✗	✗
50	Bharat Electronicsbel-india.in	🇮🇳 India	0	F	—	—	✗	✗	✗	✗

Grade

Tata Consultancy Servicestcs.com

Bajaj Finservbajajfinserv.in

HDFC Bankhdfcbank.com

SBI Life Insurancesbilife.co.in

Tech Mahindratechmahindra.com

HCL Technologieshcltech.com

Ciplacipla.com

NTPCntpc.co.in

Wiprowipro.com

Tata Steeltatasteel.com

HDFC Life Insurancehdfclife.com

Mahindra & Mahindramahindra.com

Maruti Suzukimarutisuzuki.com

Larsen & Toubrolarsentoubro.com

Kotak Mahindra Bankkotak.com

State Bank of Indiasbi.co.in

Axis Bankaxisbank.com

ICICI Bankicicibank.com

Adani Enterprisesadanienterprises.com

Adani Portsadaniports.com

Eicher Motorseichermotors.com

Infosysinfosys.com

Power Grid Corporationpowergrid.in

Apollo Hospitalsapollohospitals.com

Tata Motorstatamotors.com

BPCLbharatpetroleum.in

IndusInd Bankindusind.com

Bharti Airtelairtel.in

Reliance Industriesril.com

Coal Indiacoalindia.in

Eternalzomato.com

Dr. Reddy's Laboratoriesdrreddys.com

ITCitcportal.com

Sun Pharmaceuticalsunpharma.com

Asian Paintsasianpaints.com

Shriram Financeshriramfinance.in

Hero MotoCorpheromotocorp.com

Tata Consumer Productstataconsumer.com

Nestle Indianestle.in

Bajaj Financebajajfinance.in

Trenttrentlimited.com

Hindustan Unileverhul.co.in

Grasim Industriesgrasim.com

Hindalco Industrieshindalco.com

ONGCongcindia.com

Bajaj Autobajajauto.com

Britannia Industriesbritannia.co.in

Titan Companytitancompany.in

JSW Steeljswsteel.in

Bharat Electronicsbel-india.in

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

🇮🇳 Nifty 50 Email Security

Company

Understanding index-level analysis

Key standards tracked

FAQ - Frequently asked questions

Related pages