Argentina DMARC & MTA-STS Adoption Report 2026

A comprehensive analysis of email authentication adoption across eight critical sectors, revealing Argentina’s enforcement gap and the path to becoming a Resilient Defender.

Stats Section
95.2% National SPF Adoption
18.5% DMARC p=reject
1.2% MTA-STS Valid
+44% Phishing Surge

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THREAT LANDSCAPE

Argentina’s Escalating Email Security Crisis: The Data

In 2024, Argentina faced an increasingly hostile digital environment: a 44% year-on-year surge in phishing attacks, and 438 high-impact security incidents managed by CERT.ar, a 15% rise over 2023, with government institutions accounting for 61% of all reported incidents.

+44%

Phishing Surge in Argentina (2024–2025)

Argentina recorded a 44% year-on-year increase in phishing attacks over the 12-month period analyzed, driven by AI-powered automation allowing attackers to distribute millions of fraudulent messages at minimal cost.

438

High-Impact Security Incidents (CERT.ar 2024)

Argentina’s national incident response team CERT.ar managed 438 cybersecurity incidents in 2024, a 15% increase over 2023’s 379 cases, with government institutions accounting for 61% of all reported incidents.

61%

Government Sector Share of 2024 Incidents

Of all 438 cybersecurity incidents recorded by CERT.ar in 2024, 61% targeted state institutions, making government the most compromised sector in Argentina, with 267 incidents reported against public-sector domains and infrastructure.

+44%

Year-on-Year Phishing Surge in Argentina

Argentina’s phishing volume grew 44% year-on-year, driven by AI-powered automation that allows criminals to deploy targeted messages at scale, with government and financial institutions as the primary targets.

Source: Kaspersky Threat Landscape LatAm / CERT.ar 2024.

Argentina: “Evolving” Status, NCSI Score 58.33

Ranked 71st globally on the National Cybersecurity Index, Argentina’s “Evolving” status reflects strong foundational SPF adoption but a critical gap in enforcement-level protections. The nation has the building blocks of a world-class email security posture, but the structure above them remains incomplete.

NATIONAL OVERVIEW

Overall Email Security Adoption: All Sectors Combined

Aggregate posture across all 8 analyzed sectors, giving a national-level picture of Argentina’s email authentication maturity in 2026.

95.2% SPF Correct 4.8% Incorrect
18.5% DMARC p=reject 23.0% quarantine · 35.9% none
1.2% MTA-STS Valid 98.8% No Record
1.8% DNSSEC Enabled 98.2% Disabled

Overall DMARC Policy Distribution — All Sectors

18.5%
23.0%
35.9%
21.0%
1.6%
p=reject 18.5%
p=quarantine 23.0%
p=none 35.9%
No Record 21.0%
Incorrect 1.6%

UNDER THE HOOD

Four Structural Weaknesses

Beneath Argentina’s strong SPF foundation lie four critical structural vulnerabilities, each representing a distinct attack surface that threatens organizations across every sector.

35.9%

Domains stuck at p=none

21.0%

No DMARC record at all

56.9%

Combined unprotected rate

Weakness 01: The “Compliance Trap” of p=none

Many Argentine organizations publish a DMARC record but leave it at p=none. This provides visibility into email flows but offers zero protection against active spoofing attacks. With 35.9% of all analyzed domains in monitoring-only mode, the majority of Argentina’s digital infrastructure remains open to impersonation despite technically “having DMARC.” Healthcare (52.2% p=none) and Telecom (40.0%) are the worst offenders.

Expert insight:

“While Argentina has successfully built the technical foundation for domain transparency, organizations remain vulnerable to active exploitation until they transition from monitoring to a strict ‘reject’ stance. Real security is achieved not by observing the threat, but by neutralizing it at the gateway.”

Maitham Al Lawati, CEO, PowerDMARC

PowerDMARC Solution: Hosted DMARC

Guided enforcement journey: safely escalate from p=none → p=quarantine → p=reject without disrupting legitimate mail flow

Intuitive DMARC report analyzer translates raw XML reports into clear dashboards, eliminating the visibility barrier that keeps organizations at p=none

PowerAlerts notify security teams of spoofing attempts in real time, creating urgency to enforce

4.8%

SPF Incorrect (national)

17.4%

Healthcare SPF incorrect

7.4%

Media SPF incorrect

Weakness 02: SPF Complexity and the 10-Lookup Limit

As Argentine businesses adopt more cloud-based services, marketing automation, CRM platforms, payment gateways, and SaaS tools, they frequently hit the 10-DNS-lookup limit defined in RFC 7208. Exceeding this limit causes legitimate emails to fail authentication and land in spam or be rejected entirely, creating a deliverability crisis that erodes both security posture and sender reputation simultaneously.

Expert insight:

“The complexity of modern tech stacks means that large Argentine firms are at constant risk of exceeding DNS lookup thresholds. Implementing SPF Flattening is no longer just a best practice; it is a strategic necessity for ensuring operational resilience and sender reputation.”

Yunes Tarada, Service Delivery Manager, PowerDMARC

PowerDMARC Solution: PowerSPF

PowerSPF automatically flattens and optimizes SPF records, keeping DNS lookup counts within the RFC 7208 limit at all times

Dynamic SPF updates ensure new cloud services are instantly included without manual DNS edits or downtime windows

Real-time alerts notify teams the moment an SPF record approaches lookup threshold limits

98.8%

No MTA-STS (national)

0%

Healthcare, Govt, Education, Media, Telecom

5.4%

Energy – only bright spot

Weakness 03: MTA-STS: The Encryption Blind Spot

With 98.8% of domains lacking MTA-STS, Argentina is highly susceptible to “Downgrade Attacks” where attackers force SMTP servers to drop TLS encryption and transmit data in plain text. Standard STARTTLS is opportunistic, meaning it can be bypassed silently by any attacker with access to the network path. Without MTA-STS, there is no enforcement mechanism to prevent this interception from occurring undetected.

Expert insight:

“Relying solely on opportunistic encryption (STARTTLS) creates a dangerous false sense of security; it is a passive defense that can be easily bypassed by attackers. Without MTA-STS, a malicious actor can perform a ‘downgrade attack’ to force communications into unencrypted plaintext, making it trivial to intercept sensitive data in transit. For Argentine organizations, enforcing encrypted delivery paths is no longer optional; it is a critical requirement for maintaining data confidentiality and preventing network-level eavesdropping.”

Ayan Bhuiya, Operations & Delivery Shift Lead, PowerDMARC

PowerDMARC Solution: PowerMTA-STS

Hosted MTA-STS policy deployment in minutes, no server infrastructure required, no technical overhead

Forces all inbound email transit into enforced TLS 1.2+ channels, eliminating SMTP downgrade attack vectors entirely

PowerTLS-RPT provides real-time reporting on MTA-STS policy failures and attempted interceptions

1.8%

DNSSEC enabled (national)

0%

Government & Education

98.2%

DNS infrastructure unprotected

Weakness 04: DNSSEC: The Weak Foundation

Only 1.8% of analyzed Argentine domains are protected against DNS hijacking and cache poisoning. Without DNSSEC, attackers can redirect users to rogue websites, intercept entire email flows at the DNS layer, or impersonate any domain, completely undermining every other authentication layer that has been deployed. The Government and Education sectors report 0% DNSSEC adoption, despite holding some of the country’s most sensitive institutional data.

Expert insight:

“DNS hijacking can dismantle years of brand reputation in mere moments. DNSSEC acts as the definitive guardian of digital identity, providing the cryptographic proof necessary to ensure users reach your authentic server rather than a fraudulent clone.”

Ahona Rudra, Marketing Manager, PowerDMARC

PowerDMARC Solution: DNSSEC Checker

Instant DNSSEC validation: PowerDMARC’s DNSSEC Checker identifies misconfigurations and absent records across all monitored domains

Domain Health Analyzer provides continuous scans for DNS vulnerabilities, with clear step-by-step remediation guidance

Unified dashboard integrates DMARC monitoring + DNS integrity, giving security teams one view of the full authentication stack

SECTOR-BY-SECTOR ANALYSIS

Data-Validated Metrics Across 8 Critical Sectors

Each sector’s metrics are validated directly against the source chart data. Policy distributions reflect the full breakdown from each sector’s DMARC chart.

Financial / Banking

Risk Level: Moderate Risk

Metric Value
SPF Correct 96.7%
SPF Incorrect 3.3%
DMARC p=reject 28.4%
DMARC p=quarantine 32.5%
DMARC p=none 28.5%
No DMARC Record 10.6%
MTA-STS Valid 1.6%
DNSSEC Enabled 2.4%
Banking SPF Adoption - Argentina

Threat Scenario: Crypto-Asset & SWIFT Fraud

With a 98.4% MTA-STS gap, attackers deploy Downgrade Attacks to strip SMTP encryption, intercepting transaction confirmations to reroute funds. Banking leads in enforcement but remains a primary target for sophisticated interception.

PowerDMARC Solution for Banking

  • Hosted DMARC with guided enforcement from p=none → p=reject, protecting financial alerts and customer communications
  • PowerMTA-STS closes the 98.4% transport gap, ensuring transaction and SWIFT emails travel over enforced TLS channels
  • Real-time threat intelligence identifies unauthorized senders impersonating banking domains before they reach customers

Healthcare

Risk Level: Critical Risk

Metric Value
SPF Correct 82.6%
SPF Incorrect 17.4%
DMARC p=reject 8.7% – Critically Low
DMARC p=quarantine 13.0%
DMARC p=none 52.2%
No DMARC Record 26.1%
MTA-STS Valid 0%
DNSSEC Enabled 4.3%

Threat Scenario: Patient Data Extortion

The 52.2% p=none rate, the highest of any sector, provides visibility but zero protection. Attackers spoof hospital domains to deliver ransomware that locks patient records. With ANMAT standards taking full effect, compliance pressure is intensifying.

PowerDMARC Solution for Healthcare

  • Hosted DMARC & SPF to prevent fraudulent emails from reaching patients and clinical staff, critical for ANMAT compliance readiness
  • TLS-RPT & PowerMTA-STS to ensure medical data and patient communications are encrypted in transit
  • Automated SPF flattening to immediately fix the 17.4% incorrect SPF rate without disrupting existing healthcare systems

Government

Risk Level: Moderate Risk

Metric Value
SPF Correct 97.8%
SPF Incorrect 2.2%
DMARC p=reject 26.1%
DMARC p=quarantine 32.6%
DMARC p=none 28.3%
No DMARC Record 13.0%
MTA-STS Valid 0%
DNSSEC Enabled 0%
Government MTA-STS Adoption - Argentina

Threat Scenario: Policy Disinformation

The 32.6% quarantine rate means spoofed government alerts often land in junk folders, where they can still be accessed and trusted by citizens during a crisis. With 0% DNSSEC and 0% MTA-STS, DNS infrastructure and transport channels are fully exposed.

PowerDMARC Solution for Government

  • Protect citizens against phishing campaigns impersonating official government communications and national agencies
  • DNSSEC Checker and domain health monitoring to harden government DNS from hijacking, a critical gap at 0% adoption
  • Multi-domain management supporting national-level deployment across ministries and sub-agencies from a single platform

Education

Risk Level: Moderate Risk

Metric Value
SPF Correct 100.0%; Best in Class
DMARC p=reject 9.0%
DMARC p=quarantine 36.4%
DMARC p=none 36.4%
No DMARC Record 18.2%
MTA-STS Valid 0%
DNSSEC Enabled 0%

Threat Scenario: IP Harvesting

Despite perfect 100% SPF adoption, only 9% of Education domains enforce DMARC at reject. Attackers exploit the 91% enforcement gap to spoof faculty emails and steal research data, student credentials, and intellectual property from Argentine universities.

PowerDMARC Solution for Education

  • PowerDMARC manages thousands of departmental subdomains from one dashboard, essential for complex university domain structures
  • Guided p=quarantine → p=reject enforcement path without disrupting student portals, LMS systems, or faculty email workflows
  • BIMI deployment adds verified institutional logos to authenticated university emails, building trust with students and partners

Energy

Risk Level: Moderate Risk

Metric Value
SPF Correct 98.2%
SPF Incorrect 1.8%
DMARC p=reject 28.6%
DMARC p=quarantine 33.9%
DMARC p=none 19.6%
No DMARC Record 16.1%
Incorrect DMARC 1.8%
MTA-STS Valid 5.4%; Sector Leader
DNSSEC Enabled 3.6%
Energy SPF Adoption - Argentina

Threat Scenario: Supply Chain Poisoning

With 94.6% lacking MTA-STS, attackers can intercept unencrypted operational emails to suppliers, aiming to bridge into physical grid control systems. Energy leads MTA-STS nationally, yet 5.4% is still critically insufficient for infrastructure of this sensitivity.

PowerDMARC Solution for Energy

  • Build on the sector’s MTA-STS lead; PowerMTA-STS deploys across remaining 94.6% of unprotected energy domains with zero infrastructure overhead
  • Protect supplier communication chains with DMARC p=reject to prevent invoice fraud and operational command spoofing
  • PowerAlerts provide real-time notifications of spoofing attempts targeting energy operator and grid management domains

Media

Risk Level: Critical Risk

Metric Value
SPF Correct 92.6%
SPF Incorrect 7.4%
DMARC p=reject 2.7%; Critically Low
DMARC p=quarantine 8.8%
DMARC p=none 49.3%
No DMARC Record 35.8%
Incorrect DMARC 3.4%
MTA-STS Valid 0%
DNSSEC Enabled 0.7%
Media DMARC Adoption - Argentina

Threat Scenario: Fake News Distribution

The 2.7% p=reject rate and 35.8% complete lack of DMARC give attackers near-unobstructed access to spoof media outlet domains. AI-assisted tools generate believable misinformation at scale using the identity of trusted Argentine news brands.

PowerDMARC Solution for Media

  • Move media domains to p=reject, ensuring only verified journalists and editorial staff send authenticated mail, defending brand credibility against AI-powered deepfake campaigns
  • BIMI integration displays verified logos in major email clients, helping audiences visually confirm authentic communications
  • Reputation Monitoring alerts editors the moment their domain is used in a spoofing or impersonation campaign

Telecommunications

Risk Level: Moderate Risk

Metric Value
SPF Correct 95.0%
SPF Incorrect 5.0%
DMARC p=reject 17.5%
DMARC p=quarantine 15.0%
DMARC p=none 40.0%
No DMARC Record 22.5%
Incorrect DMARC 5.0%
MTA-STS Valid 0%
DNSSEC Enabled 2.5%
BIMI Logo

Threat Scenario: SIM-Swap & Billing Phishing

Scammers spoof carrier domains for credential harvesting. With only 17.5% at p=reject, spoofed carrier emails reach subscribers, enabling SIM-swap attacks, account takeovers, and billing fraud. Telecoms are the digital backbone of Argentina; their reactive posture puts every subscriber at risk.

PowerDMARC Solution for Telecom

  • Protect millions of subscribers by enforcing p=reject on carrier domains, preventing spoofed billing and service emails from ever reaching inboxes
  • Resolve the 5.0% misconfigured DMARC records with PowerDMARC’s automated record validator and health scanner
  • TLS-RPT reporting surfaces real-time visibility into email interception attempts across subscriber communication flows

Transport & Logistics

Risk Level: Lower Risk

Metric Value
SPF Correct 98.0%
SPF Incorrect 2.0%
DMARC p=reject 30.6%; Sector Leader
DMARC p=quarantine 28.6%
DMARC p=none 28.6%
No DMARC Record 12.2%
MTA-STS Valid 2.0%
DNSSEC Enabled 2.0%; Sector Leader
Transport DNSSEC Adoption - Argentina

Threat Scenario: Invoice Manipulation

The 12.2% no-DMARC gap allows attackers to send spoofed invoices to shipping partners, changing bank details to redirect freight payments. Logistics companies handle just-in-time data; any interruption in email trust can halt a supply chain.

PowerDMARC Solution for Transport

  • Build on Transport’s sector-leading reject rate by closing the remaining 28.6% p=none gap, preventing invoice fraud and freight payment redirection
  • PowerMTA-STS protects the 98% of transport domains lacking transport-layer encryption, securing supplier and partner communications
  • Multi-domain management for logistics networks with regional subdomains and partner brands across Argentina and LatAm

SUMMARY HEATMAP

Cross-Sector Security Posture at a Glance

Color context: Green = strong (>80%), Amber = partial (15–80%), Red = insufficient (<15%), gray=absent (0%).

Sector SPF Correct DMARC p=reject MTA-STS Valid
Banking 96.7% 28.4% 1.6%
Healthcare 82.6% 8.7% 0%
Government 97.8% 26.1% 0%
Education 100.0% 9.0% 0%
Energy 98.2% 28.6% 5.4%
Media 92.6% 2.7% 0%
Telecommunications 95.0% 17.5% 0%
Transport & Logistics 98.0% 30.6% 2.0%
Sector SPF Correct DMARC p=reject MTA-STS Valid
Banking 96.7% 28.4% 1.6%
Healthcare 82.6% 8.7% 0%
Government 97.8% 26.1% 0%
Education 100.0% 9.0% 0%
Energy 98.2% 28.6% 5.4%
Media 92.6% 2.7% 0%
Telecommunications 95.0% 17.5% 0%
Transport & Logistics 98.0% 30.6% 2.0%

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GLOBAL BENCHMARKING

Argentina vs. Global Peers: PowerDMARC Published Data

All figures below are sourced from PowerDMARC’s own published country report.

Country SPF Correct DMARC p=reject MTA-STS DNSSEC Policy Regime
Australia 92.3% 46.7% 5.8% 6.8% ACSC Guidance
Poland 98.9% 21.2% 0.9% 15.7% EU NIS2 Directive
Netherlands 70.0% 23.2% 0.9% 37.7% EU NIS2 Directive
Italy 91.0% 16.7% 1.0% 3.5% Voluntary
Japan 95.0% 9.2% 0.5% 16.4% Voluntary
Argentina 95.2% 18.5% 1.2% 1.8% No Mandate

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WHERE ARGENTINA LEADS

Argentina’s 95.2% SPF outpaces Australia (92.3%), Italy (91.0%), and Japan (95.0%) while approaching Poland (98.9%) as a near-perfect foundation. SPF adoption is Argentina’s clearest global strength.

THE ENFORCEMENT GAP

At 18.5% p=reject, Argentina exceeds Japan (9.2%) and trails Australia (46.7%), Poland (21.2%), and the Netherlands (23.2%). Italy (16.7%) is the closest peer; both operate without mandates.

THE DNSSEC DEFICIT

Argentina’s 1.8% DNSSEC rate is dwarfed by the Netherlands (37.7%), Poland (15.7%), and Japan (16.4%). This is the most severe relative gap and the one where a national mandate would have the fastest impact.

KEY FINDINGS

The National Enforcement Gap in Six Data Point

1
SPF Adoption Is World-Class

Argentina achieves 95.2% national SPF adoption, on par with the US (95.7%) and above Australia (92.3%), Italy (91.0%), and Japan (95.0%). The foundational layer outpaces most of the developed world.

2
Only 18.5% Reach p=reject, One Third of Australia's Rate

Australia’s guidance-driven 46.7% rejection rate is 2.5x Argentina’s voluntary 18.5%. Argentina’s posture mirrors Italy (16.7%), both countries lack a national mandate.

3
Only 18.5% MTA-STS at 1.2%, A Near-Total Blind Spot

Only Energy (5.4%), Transport (2.0%), and Banking (1.6%) have any MTA-STS. Six of eight sectors report 0%, leaving 98.8% of Argentina’s email traffic exposed to SMTP downgrade attacks.

4
Only 18.5% Media Is the Nation's Most Exposed Sector

With only 2.7% p=reject and 35.8% lacking any DMARC record, media is Argentina’s most vulnerable sector, giving attackers a near-open channel to weaponize trusted news brands for AI-generated disinformation campaigns.

5
Healthcare's 52.2% p=none Is the Highest of Any Sector

More than half of healthcare domains are in monitoring-only mode. Combined with 100% missing MTA-STS, this is the highest-risk patient data exposure posture of any analyzed sector, and a critical ANMAT compliance risk.

6
Only 18.5% DNSSEC at 1.8%; Netherlands Is at 37.7%

Argentina’s 1.8% national DNSSEC rate, with Government and Education at 0%, leaves the entire DNS foundation exposed to hijacking and cache poisoning. Italy alone (3.5%) is nearly double Argentina’s national average.

RECOMMENDATIONS

From Passive Leader to Resilient Defender

Six prioritized actions, organized by urgency, to close Argentina’s enforcement gap and achieve a posture commensurate with its world-class SPF foundation.

Immediate Priority

Escalate DMARC from p=none to p=reject

Healthcare (52.2% p=none) and Telecom (40.0%) must begin a structured enforcement journey immediately. PowerDMARC’s hosted platform provides a safe, guided migration path (p=none → p=quarantine → p=reject) with zero legitimate mail disruption.

Immediate Priority

Deploy MTA-STS Across All Critical Sectors

Six of eight sectors report 0% MTA-STS. PowerMTA-STS eliminates SMTP downgrade attacks and enforces TLS 1.2+ on all inbound mail, closing the transport encryption gap that exposes 98.8% of Argentina’s email infrastructure.

Immediate Priority

Close the “No DMARC Record” Gap

Media (35.8%), Healthcare (26.1%), and Telecom (22.5%) have the largest shares of domains with no DMARC record at all. Publishing even a p=none record immediately enables visibility. PowerDMARC’s DMARC Generator deploys a valid record in minutes.

Short Term (3–6 months)

Mandate DNSSEC for Government & Education

Both sectors report 0% DNSSEC. A national mandate for .gov.ar domains, mirroring international cybersecurity strategies, would rapidly protect the DNS foundation all other protocols depend on.

Short Term (3–6 months)

Fix Misconfigured DMARC & SPF Records

Telecom (5.0% incorrect DMARC), Media (3.4%), Energy (1.8%), and Healthcare (17.4% incorrect SPF) all have active misconfigurations providing false security. PowerDMARC’s Domain Health Analyzer identifies and resolves all misconfigurations automatically.

Long Term (6–18 months)

Establish a National Email Security Framework

The data is unambiguous: countries with national guidance achieve 2.5–3x higher enforcement rates. Argentina should follow the US, UK, and Australian models. PowerDMARC supports government-scale multi-domain deployments with full compliance reporting.

Research & Data Sources

DNS Record Analysis

Active DNS queries across domain samples from all 8 sectors, retrieving and validating SPF, DMARC, MTA-STS, and DNSSEC records per relevant RFC standards.

Sector Sampling

Domains identified from publicly available registries and sector databases across Financial, Healthcare, Government, Education, Energy, Media, Telecommunications, and Transport.

Global Benchmarking

All benchmark figures sourced from PowerDMARC’s published country reports for Australia, Poland, Netherlands, Italy, and Japan, using consistent DNS-analysis methodology.

Risk Classification

Sector risk ratings derived from a composite of p=reject adoption, share of domains with no DMARC record, and SPF misconfiguration rate across analyzed domains.

Argentina Has the Foundation; Now Comes the Structure

Argentina’s email security posture in 2026 reflects a country that has successfully completed Phase 1 of the authentication journey: identification. With 95.2% national SPF adoption, Argentina matches the United States and outpaces most of Europe. The foundational layer is genuinely world-class.

But in a threat environment where Argentina saw a 44% surge in phishing attacks year-on-year, and where CERT.ar managed 438 high-impact security incidents in 2024 alone; a near-perfect SPF rate without enforcement is like a sophisticated alarm system with the siren muted. At 18.5% national p=reject, compared to Australia’s 46.7%, Argentina is leaving the vast majority of its digital infrastructure open to impersonation, fraud, and interception.

The path from “Passive Leader” to “Resilient Defender” runs through DMARC p=reject, MTA-STS deployment, and a national framework that mandates adoption across government and regulated sectors. The tools to close this gap are available today, and with government institutions bearing 61% of Argentina’s 2024 cyberincidents, the urgency for public-sector leadership on email authentication has never been clearer.

“Argentina has laid a flawless floor. The structure above it (DMARC enforcement, MTA-STS, DNSSEC) remains unfinished and exposed. Building it is not optional in 2026.”

Start Your DMARC Enforcement Journey Today

PowerDMARC secures email ecosystems for over 10,000 organizations across 100+ countries, including Fortune 100 companies, governments, and critical infrastructure operators. SOC 2 Type 2 · ISO 27001 · GDPR compliant. Visit powerdmarc.com to book a 1:1 session with our email security experts.