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BIMI + MTA-STS + PGP

Advanced Email Security for Modern Business

Comprehensive advanced email security combining BIMI brand verification, MTA-STS encrypted transport, and PGP end-to-end encryption. Elevate your email security posture and build trust with enterprise-grade protection.

3B+
Inboxes Reached
100%
TLS Encryption
4096-bit
RSA Keys
Zero
Compromises
Three Pillars of Protection

Comprehensive Email Security Stack

Each layer adds protection. Together, they create enterprise-grade email security that builds trust and ensures compliance.

BIMI Brand Verification

Your Logo in Every Inbox

Display your verified brand logo next to every email in Gmail, Yahoo, and Apple Mail. Build instant trust and stand out from competitors.

10%+
Higher Open Rates
  • Logo display in 3B+ inboxes
  • VMC certificate support
  • Free CDN hosting included
  • Gmail blue checkmark eligible
Technical Details

Requires DMARC at enforcement. Integrates with existing email infrastructure.

MTA-STS Transport Security

Encrypted Email in Transit

Mandate TLS encryption for all inbound email. Block man-in-the-middle attacks and downgrade attacks with enforced transport security.

100%
Encryption Rate
  • 100% TLS enforcement
  • Free policy file hosting
  • Real-time failure alerts
  • TLS reporting (TLS-RPT)
Technical Details

DNS-based policy. No client software required. Progressive deployment from testing to enforce.

PGP End-to-End Encryption

Military-Grade Content Protection

Encrypt email content so only the intended recipient can read it. Essential for legal, healthcare, financial, and executive communications.

Zero
Key Compromises
  • 4096-bit RSA keys
  • Key management infrastructure
  • Gateway or client encryption
  • 100% key recovery
Technical Details

Multiple deployment options: gateway-based, client-side, or hybrid. Integrates with Outlook, Thunderbird, mobile.

How It Works Together

Three layers of protection for your email communications

Your Team

Sends email

BIMI

Logo attached

MTA-STS

TLS encrypted

PGP

Content encrypted

Recipient

Secure delivery

Brand Recognition

Logo displays in inbox before email is opened

Transport Protection

Email encrypted between servers

Content Security

Only recipient can read message

Value for Every Stakeholder

Different perspectives, unified security benefits

Business Owners

Protect Your Brand & Close Enterprise Deals

  • Display your logo in customer inboxes to build trust
  • Meet security requirements that enterprise clients demand
  • Protect sensitive business communications from competitors
  • Demonstrate security leadership to your market
CTOs & IT Leaders

Enterprise Security Without Enterprise Complexity

  • Layered email security: authentication, transport, content
  • Free hosted infrastructure reduces operational burden
  • Progressive deployment minimizes implementation risk
  • Unified monitoring across all email security layers
SEO & Marketing

Boost Deliverability & Engagement

  • 10%+ higher open rates with BIMI brand logos
  • Improved deliverability through proven authentication
  • Reduced spam complaints and better sender reputation
  • Competitive differentiation in crowded inboxes
Compliance Ready

Meet Regulatory Requirements

Advanced email security helps you satisfy encryption and data protection requirements across major compliance frameworks.

  • Email encryption for data in transit
  • End-to-end encryption for sensitive data
  • Audit-ready monitoring and reporting
  • Key management and recovery procedures

HIPAA

Healthcare email encryption requirements

SOC 2

Security controls and email protection

GDPR

Data protection in transit

PCI-DSS

Financial data transmission security

Legal/Attorney

Privileged communications protection

M&A/Deal Rooms

Confidential transaction security

Implementation Roadmap

Phased deployment for minimal disruption

1
Week 1

Foundation

DMARC verification and baseline assessment

  • DMARC policy check
  • Email flow analysis
  • Infrastructure audit
2
Week 2-3

Brand & Transport

Deploy BIMI and MTA-STS for brand and transport security

  • BIMI record + logo
  • MTA-STS policy
  • TLS-RPT monitoring
3
Week 3-4

Encryption

Implement PGP encryption for sensitive communications

  • Key infrastructure
  • Client deployment
  • Policy configuration
4
Ongoing

Optimize

Monitor, report, and continuously improve

  • Unified dashboard
  • Compliance reporting
  • Threat analysis
Included at No Extra Cost

Free CDN & Policy Hosting

Unlike other providers, we host your BIMI logo and MTA-STS policy files on our global CDN infrastructure at no additional cost.

BIMI Logo CDN

Global distribution for your brand logo

MTA-STS Policy

Hosted policy file for TLS enforcement

99.9% Uptime SLA

Enterprise-grade reliability

Measurable Impact

The Business Case for Advanced Email Security

Real metrics from organizations after implementing BIMI, MTA-STS, and PGP

Email Open Rates

Before18-22%
After28-35%
+55%

Spam Complaints

Before0.3-0.5%
After<0.1%
-70%

Enterprise Deal Close Rate

BeforeBlocked by security review
AfterPass questionnaires
+40%

Phishing Success (against you)

BeforeVulnerable
AfterNear zero
-95%
Risk Assessment

What Happens Without Advanced Email Security?

The risks of operating without BIMI, MTA-STS, and PGP

Brand Impersonation

Without BIMI, attackers can send emails that look like they're from your brand. Recipients have no visual verification.

Impact: Customer trust erosion, fraud, support costs

Email Interception

Without MTA-STS, emails can be intercepted in transit through downgrade attacks or MITM proxies.

Impact: Data breach, compliance violations, legal liability

Sensitive Data Exposure

Without PGP, sensitive emails are readable by anyone with access to mail servers along the route.

Impact: Intellectual property theft, M&A leaks, regulatory fines

Failed Enterprise Sales

Enterprise clients require proof of email security. Without these standards, you fail security questionnaires.

Impact: Lost deals worth $50K-$500K+

Basic vs. Advanced Email Security

What you get with comprehensive advanced email security

Feature
Basic (SPF/DKIM/DMARC)
+ Advanced Security
Logo displayed in Gmail/Yahoo/Apple Mail
Blue checkmark eligibility (Gmail)
Enforced TLS encryption for inbound email
Man-in-the-middle attack prevention
End-to-end email encryption
Key management and recovery
Free CDN hosting for BIMI/MTA-STS
TLS failure monitoring and alerting
Compliance documentation
Unified security dashboard
Complete Package

What's Included

Every deliverable you receive with Advanced Email Security

BIMI Implementation

  • SVG logo optimization for email clients
  • BIMI DNS record configuration
  • VMC certificate guidance and support
  • Free global CDN hosting for logo
  • Gmail, Yahoo, Apple Mail testing
  • Ongoing monitoring and updates

MTA-STS Deployment

  • MTA-STS policy file creation
  • DNS record configuration
  • Free policy file hosting
  • TLS-RPT email setup and parsing
  • Progressive testing → enforce rollout
  • Certificate monitoring and alerts

PGP Encryption

  • Key generation (4096-bit RSA)
  • Key server infrastructure
  • Client or gateway deployment
  • Outlook/Thunderbird/mobile setup
  • Key recovery procedures
  • User training and documentation
For Technical Teams

Technical Specifications

Protocol details, DNS records, and implementation requirements

BIMI Technical Details

Record TypeTXT at default._bimi
Logo FormatSVG Tiny 1.2 (Secure)
VMC AuthorityDigiCert, Entrust
Supported ClientsGmail, Yahoo, Apple Mail, Fastmail
PrerequisiteDMARC at p=quarantine or p=reject
Logo Max Size32KB SVG, no external refs

MTA-STS Technical Details

Policy Locationhttps://mta-sts.domain/.well-known/mta-sts.txt
DNS RecordTXT at _mta-sts
TLS VersionsTLS 1.2, TLS 1.3
Policy Modesnone → testing → enforce
Max AgeUp to 31557600 seconds (1 year)
ReportingTLS-RPT to designated email

PGP Technical Details

Key AlgorithmRSA 4096-bit or ECC
Symmetric CipherAES-256
Hash AlgorithmSHA-256 or SHA-512
Key DistributionWKD, SKS, or custom keyserver
Client SupportOutlook, Thunderbird, Apple Mail, mobile
Gateway OptionServer-side with web portal fallback

Example DNS Records

BIMI Record
default._bimi.example.com. IN TXT "v=BIMI1; l=https://cdn.platops.com/bimi/example.svg; a=https://example.com/vmc.pem"
MTA-STS Record
_mta-sts.example.com. IN TXT "v=STSv1; id=20240115120000Z"
TLS-RPT Record
_smtp._tls.example.com. IN TXT "v=TLSRPTv1; rua=mailto:tls-reports@example.com"

Technology Partners

Industry-leading tools and standards we use

DigiCert
VMC Certificate
Entrust
VMC Certificate
Cloudflare
CDN & Hosting
GnuPG
PGP Standard
Let's Encrypt
TLS Certificates
Hardenize
Monitoring
Common Questions

Frequently Asked Questions

Everything you need to know about BIMI, MTA-STS, and PGP

1What's the difference between MTA-STS and regular TLS?

Regular TLS is opportunistic-servers attempt encryption but fall back to plaintext if it fails. MTA-STS makes TLS mandatory. If the receiving server can't establish a TLS 1.2+ connection, the email is rejected. This prevents downgrade attacks where attackers force unencrypted delivery.

2Do we need all three (BIMI, MTA-STS, PGP) or can we pick one?

Each layer serves a different purpose: BIMI is for brand visibility and trust, MTA-STS protects email in transit, and PGP encrypts the content itself. You can implement them independently, but together they provide comprehensive protection. Most clients start with BIMI + MTA-STS, then add PGP for sensitive communications.

3What are the prerequisites for BIMI?

BIMI requires a valid DMARC record at enforcement level (p=quarantine or p=reject) with 100% alignment. This means SPF and DKIM must be properly configured. If you don't have DMARC at enforcement, we'll help you get there first.

4How does PGP work with mobile email?

We support multiple approaches: (1) Gateway encryption that works transparently with any mobile client, (2) Native apps like OpenKeychain for Android or PGP Everywhere for iOS, (3) Web portal for recipients without PGP capability. Most organizations use a hybrid approach.

5What if a recipient doesn't have PGP?

For recipients without PGP, we offer several fallback options: (1) Secure web portal where they retrieve encrypted messages, (2) Password-protected attachments, (3) S/MIME fallback for enterprise recipients, (4) Automatic policy that only encrypts when recipient has a public key.

6How long does implementation take?

BIMI and MTA-STS can typically be implemented in 1-2 weeks each. PGP takes 2-4 weeks depending on the number of users and deployment model. A complete implementation is usually 4-6 weeks. We use a phased approach to minimize disruption.

7What if we lose a PGP private key?

We implement a secure key escrow system with your organization. Private keys are backed up encrypted with a recovery key held by designated administrators. This ensures you never lose access to encrypted communications, even if an employee leaves or loses their device.

8Is there ongoing maintenance required?

Yes, but we handle it. BIMI logos may need updates with rebranding. MTA-STS policies require DNS updates when mail servers change. PGP keys need rotation (typically annually). TLS certificates need monitoring. All of this is included in our managed service.

Ready to Elevate Your Email Security?

Get comprehensive protection with BIMI, MTA-STS, and PGP encryption. Free hosting included.

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