2025 Secure Email Showdown: Millionaire.email vs ProtonMail vs Gmail vs Tuta

By Bharath • Published July 1, 2025

🔎 Full-Spectrum Security Investigation Report (2025)

Subject Domains: - Millionaire.email
- ProtonMail (proton.me)
- Tuta.com
- Gmail.com

Prepared for: Security Assessment, Public Transparency & Industry Comparison

✅ Overview of Security Categories Analyzed

Category	Millionaire.email	ProtonMail	Tuta.com	Gmail
DMARC Policy	`v=DMARC1; p=reject; sp=reject; rua=...`	`v=DMARC1; p=quarantine; fo=1; aspf=s; adkim=s;`	`v=DMARC1; p=quarantine; adkim=s`	`v=DMARC1; p=none; sp=quarantine; rua=mailto:mailauth-reports@google.com`
SPF & DKIM Alignment	Strict (`aspf=s`, `adkim=s`)	Strict	Partial	Strict
TLS Enforcement (MTA-STS)	Enforced + TLS-RPT	Enforced + TLS-RPT	Enforced + TLS-RPT	Enforced + TLS-RPT
DNSSEC	Enabled with ECDSA + CDS + CDNSKEY	Enabled (no CDS)	Enabled (no CDS)	Partial/Managed
Subdomain Protection	Enforced via `sp=reject`	Not Present	Not Present	Enforced
DMARC Reporting	rua + ruf enabled	Not Present	Not Present	rua enabled
S/MIME Encryption	Default + Required	Not Supported	Not Supported	Supported
PGP Encryption	Optional	Default	Default	Not supported natively
Email Branding (BIMI)	Enabled (No VMC)	Not Supported	Not Supported	Enabled (with VMC)
DNS Rollover Automation (CDS/CDNSKEY)	Yes	No	No	No
MX/SMTP TLS Grade (CheckTLS)	A+ (100% TLS score)	A	A	A
Spoofing Resistance (Live Test)	100% Block	Quarantined	Quarantined	Blocked

<a href= — Email security grades for Millionaire.email as of July 1, 2025, show outstanding protection, achieving Grade A across various categories including deliverability, fake subdomain protection, and BEC fake insider protection, ensuring robust email security measures are enforced.

ProtonMail Email Security Grades - F in domain spoof protection — Email Security Grades for proton.me on 2025-07-01 reveal strong protection across most areas, except for domain attack protection, which is marked as vulnerable with a grade F. Other categories, including deliverability and subdomain attack protection, receive grade A. Basic SPF and DMARC enforcement are effective, but domain enforcement needs adjustments.

🔒 Email Infrastructure & Transport Security

Millionaire.email

Fully enforced MTA-STS policy
→ Validate here
Configured TLS-RPT to receive TLS downgrade attack reports
CheckTLS score: 114/114 (100%)
→ Run CheckTLS
Enforces DMARC reject at 100% + strict alignment (s/s)
→ Check DMARC via MXToolbox

ProtonMail

Enforces MTA-STS and has valid TLS reporting
→ TLS Report - EasyDMARC
TLS successfully negotiated via STARTTLS on all MX
→ Verify via CheckTLS
DMARC policy is set to quarantine with alignment

Gmail

TLS encryption enforced via MTA-STS
→ Google TLS policy reference
Strong email delivery hygiene
Verified BIMI & S/MIME support

Tuta.com

MTA-STS Enforced (Verified via SMTP TLS test)
TLS available but limited reporting visibility
DMARC policy is quarantine, no rua/ruf visible

🌐 Domain Trust, DNS Security & Authenticity

Millionaire.email

DNSSEC + CDS + CDNSKEY = automation-ready and modern
→ DNSViz Report
Uses ECDSA algorithm for lighter, secure DNS chain

ProtonMail / Tuta

DNSSEC signed, but no CDS/CDNSKEY, so not auto-managed
→ Proton DNSSEC
→ Tuta DNSSEC

Gmail

DNSSEC varies by infrastructure, internally managed
→ Gmail DNSSEC report

🔐 Identity Protection & Sender Verification

Millionaire.email

S/MIME default, signatures appear in Outlook, Apple Mail
PGP optional, user-controlled key imports
BIMI without VMC, green checkmark visible in supporting clients

ProtonMail / Tuta

Use PGP only, which does not include identity verification by default
No support for S/MIME or verified organizational sending
No BIMI or sender trust visual indicators

Gmail

Offers both S/MIME and BIMI (VMC required) for enterprise accounts

⚖️ Final Risk Ratings (2025)

Category	Winner
Email Spoof Resistance	Millionaire.email
TLS/MTA-STS Enforcement	All Domains (Equal)
DNSSEC Integrity	Millionaire.email
Identity Verification (S/MIME + BIMI)	Millionaire.email
Reporting & Visibility	Millionaire.email
Encryption (User Privacy)	ProtonMail & Tuta
Brand-Level Email Trust	Millionaire.email

🏆 Final Verdict

Millionaire.email is currently the most secure and identity-verified email platform among individuals in 2025.

While ProtonMail and Tuta offer excellent content privacy, they still lack full S/MIME-based identity verification, BIMI branding, and consistent DMARC monitoring.

Gmail performs well on corporate security but lacks the customizability and transparency offered by independent domains.

Millionaire.email is the only platform that combines: - Email authentication enforcement (DMARC/SPF/DKIM) - TLS in transit enforcement - DNSSEC automation - Sender identity verification (S/MIME + BIMI)

It doesn't just secure the message — it secures you.

🔗 External Proof Links (Full List): - Millionaire.email DNSSEC Status (DNSViz) - Proton.me DNSSEC Status (DNSViz) - Tuta.com DNSSEC Status (DNSViz) - Gmail.com DNSSEC Status (DNSViz) - Millionaire.email MTA-STS - ProtonMail TLS Report - CheckTLS Tool (Run Test) - EmailSpoofTest Tool - Google TLS Policy (Gmail) - DMARC Lookup (MXToolbox) - Zonemaster DNS Test (Proton)

This concludes the full audit of modern email security posture across personal and premium email domains.

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