What standards are checked for each company?

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 quality and strictness, totaling up to 100.

How often are scores updated?

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

CaptainDNS

DNS Lookup

Choose a DNS record type to search for.

Propagation & diagnostics

Compare resolvers worldwide and inspect returned answers.

Propagation testPublic resolvers, remaining TTLs, divergent responses.
Domain DNS auditParent/local NS, authority and response times.
DNSSEC CheckerValidate chain of trust, DS records and signing keys.
API & integrations
Keep history, monitor your zones and automate recurring checks.

Email authentication

Tools to verify and validate your email authentication setup.

Syntax validation

Record inspectors

Generators

Deliverability

Email deliverability audit

Audit MX, SPF, DKIM and DMARC to confirm a domain is ready to send.

Mail header analyzer

Decode participants, authentication results and routing from raw headers.

Email tester

Send a test email and get instant authentication and deliverability feedback.

IP Blacklist Checker

Check if your IP is on email blacklists

Domain Blacklist Checker

Check if your domain is on URI blacklists

SPF Flattener

Flatten SPF records to reduce DNS lookups below the 10-lookup limit.

DKIM Selector Finder

Auto-discover all DKIM selectors for a domain via DNS brute-force.

SMTP/MX Tester

Test SMTP connectivity of your MX servers: banner, STARTTLS, TLS certificate, open relay.

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Convert any block of text to upper or lower case instantly.

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Password generator

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Regex Tester

Test a regular expression against text and visualize matches.

JSON / YAML Formatter

Format, validate and convert JSON and YAML in one click.

Web & Certificates

BIMI logos, VMC/CSR certificates and web page diagnostics.

BIMI logo lookup

Inspect a BIMI logo URL - format, metadata and live rendering - before rollout.

BIMI SVG converter

Convert any SVG to BIMI-compliant Tiny-PS format in seconds.

CSR parser

Inspect a CSR, extract subject details, fingerprints and requested SANs.

VMC inspector

Inspect a Verified Mark Certificate - issuer, validity and SAN coverage - before you publish BIMI.

Page size checker

Check if your page exceeds Google's 2 MB crawl limit.

Phishing URL Checker

Check if a URL is flagged as phishing or malware by 4 threat intelligence sources.

🇮🇳 Email Security in India

Weekly audit of email security across 50 listed companies headquartered in India.

50 companies analysed · Scan week: 2026-03-02

Average score

42/ 100

DMARC reject

56%

BIMI configured

26%

MTA-STS enforce

DNSSEC enabled

34%

A+

Average

Median

Min

Max

			Grade	DMARC	SPF	BIMI	MTA-STS	DNSSEC
1	Tata Consultancy Servicestcs.com	75	B	reject	-all	✗	✗	✓
2	Tech Mahindratechmahindra.com	69	C	reject	-all	✗	✗	✓
3	HDFC Bankhdfcbank.com	69	C	reject	-all	✓	✗	✓
4	SBI Life Insurancesbilife.co.in	69	C	reject	~all	✗	✗	✓
5	Ciplacipla.com	67	C	reject	~all	✓	✗	✓
6	NTPCntpc.co.in	67	C	reject	-all	✗	✗	✓
7	Bajaj Finservbajajfinserv.in	67	C	reject	~all	✓	✗	✓
8	Wiprowipro.com	66	C	quarantine	-all	✗	✗	✓
9	HCL Technologieshcltech.com	66	C	reject	-all	✗	✗	✓
10	Tata Steeltatasteel.com	64	C	quarantine	-all	✗	✗	✓
11	HDFC Life Insurancehdfclife.com	62	C	reject	-all	✓	✗	✓
12	Maruti Suzukimarutisuzuki.com	59	C	quarantine	?all	✗	✗	✓
13	Mahindra & Mahindramahindra.com	59	C	quarantine	-all	✗	✗	✓
14	Larsen & Toubrolarsentoubro.com	59	C	reject	-all	✓	✗	✗
15	Kotak Mahindra Bankkotak.com	58	C	reject	-all	✗	✗	✓
16	State Bank of Indiasbi.co.in	56	C	reject	-all	✓	✗	✗
17	Axis Bankaxisbank.com	56	C	reject	-all	✓	✗	✓
18	ICICI Bankicicibank.com	55	C	reject	-all	✓	✗	✗
19	Adani Portsadaniports.com	53	C	reject	-all	✗	✗	✓
20	Adani Enterprisesadanienterprises.com	53	C	reject	-all	✗	✗	✓
21	Infosysinfosys.com	51	C	reject	-all	✗	✗	✗
22	Power Grid Corporationpowergrid.in	51	C	quarantine	-all	✗	✗	✗
23	Eicher Motorseichermotors.com	50	C	reject	~all	✗	✗	✗
24	Tata Motorstatamotors.com	49	D	reject	~all	✗	✗	✗
25	BPCLbharatpetroleum.in	49	D	reject	~all	✓	✗	✗
26	IndusInd Bankindusind.com	48	D	reject	-all	✓	✗	✗
27	Reliance Industriesril.com	44	D	reject	-all	✗	✗	✗
28	Bharti Airtelairtel.in	44	D	quarantine	-all	✗	✗	✗
29	Coal Indiacoalindia.in	44	D	quarantine	-all	✗	✗	✗
30	Asian Paintsasianpaints.com	41	D	reject	-all	✓	✗	✗
31	Dr. Reddy's Laboratoriesdrreddys.com	41	D	reject	-all	✓	✗	✗
32	ITCitcportal.com	41	D	quarantine	~all	✗	✗	✗
33	Sun Pharmaceuticalsunpharma.com	41	D	reject	-all	✓	✗	✗
34	Hero MotoCorpheromotocorp.com	40	D	quarantine	~all	✗	✗	✗
35	Shriram Financeshriramfinance.in	40	D	reject	~all	✗	✗	✗
36	Tata Consumer Productstataconsumer.com	38	D	none	~all	✗	✗	✗
37	Nestle Indianestle.in	37	D	reject	~all	✗	✗	✗
38	Apollo Hospitalsapollohospitals.com	36	D	quarantine	-all	✗	✗	✗
39	Eternaleternal.com	26	F	none	~all	✗	✗	✗
40	Bajaj Financebajajfinance.in	23	F	—	-all	✗	✗	✗
41	Hindustan Unileverhul.co.in	18	F	reject	-all	✗	✗	✗
42	Grasim Industriesgrasim.com	14	F	—	—	✗	✗	✗
43	Hindalco Industrieshindalco.com	10	F	—	—	✗	✗	✗
44	Bajaj Autobajajauto.com	8	F	—	—	✗	✗	✗
45	Britannia Industriesbritannia.co.in	8	F	—	—	✗	✗	✗
46	ONGCongcindia.com	8	F	—	—	✗	✗	✗
47	Titan Companytitancompany.in	0	F	—	—	✗	✗	✗
48	Trenttfrhl.com	0	F	—	—	✗	✗	✗
49	JSW Steeljswsteel.in	0	F	—	—	✗	✗	✗
50	Bharat Electronicsbel-india.in	0	F	—	—	✗	✗	✗

Understanding country-level analysis

Grouping companies by country reveals how corporate email security practices vary across markets. Countries with stricter regulatory environments or more mature cybersecurity ecosystems tend to show higher average scores.

What this page shows:

Average score - The mean email security score across all listed companies in this country
Grade distribution - How many companies fall into each grade bracket (A+ through F)
DMARC reject rate - The percentage of companies enforcing strict DMARC policies
Company table - Individual scores, grades and key indicator status

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 grouped by country?

A: Based on the stock exchange where they are listed.

Q: What standards are checked?

A: SPF, DKIM, DMARC, BIMI, MTA-STS, DANE/TLSA and DNSSEC.

Q: Can I compare countries?

A: Yes, via the Statistics page.

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

🇮🇳 Email Security in India

Understanding country-level analysis

Key standards tracked

FAQ - Frequently asked questions

Related pages