Best Secure Email Providers 2025

Our top pick is ProtonMail for its Swiss privacy laws and end-to-end encryption, but we also found great value in Fastmail and Tutanota. Read on to learn why these secure email providers stand out in 2025.

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Updated: July 25, 2025
By SignalVault Privacy Team

Table of Contents

Top 3 Secure Email Providers at a Glance

Short on time? Here are our top 3 secure email recommendations for 2025:

Best Overall
ProtonMail

ProtonMail

Best overall secure email with Swiss privacy laws and end-to-end encryption.

Get ProtonMail Now →
Best for Business
Fastmail

Fastmail

Best for business users with excellent features and reliability.

Get Fastmail Now →
Best Free Option
Tutanota

Tutanota

Best free option with strong encryption and open-source code.

Get Tutanota Now →

Secure Email Comparison

Secure Email Comparison

Compare key features and pricing to find the best option for your needs

Feature ProtonMail Fastmail Tutanota Startmail Hushmail
Rating
9.2/10
8.7/10
8.5/10
8.3/10
8.1/10
Price $6.99/month $3.00/month $0/month $5.00/month $4.99/month
Best For Maximum Privacy Business Users Privacy-Focused Users Privacy-Conscious Users Business Users
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Our Top Secure Email Picks

#1 ProtonMail

ProtonMail

Editor's Choice
Get ProtonMail Now →

What We Like

  • True end-to-end encryption
  • Swiss jurisdiction
  • Open source

What We Don't Like

  • Limited storage on free plan
  • No calendar in free version

ProtonMail

End-to-end encrypted email service

9.2/10
$6.99/month$7.99/month
Best for:

Maximum Privacy

Get ProtonMail →
#2 Fastmail

Fastmail

Get Fastmail Now →

What We Like

  • Excellent features
  • Great mobile apps
  • Custom domains

What We Don't Like

  • No end-to-end encryption
  • Based in Australia

Fastmail

Professional email with excellent features

8.7/10
$3.00/month
Best for:

Business Users

Get Fastmail →
#3 Tutanota

Tutanota

Get Tutanota Now →

What We Like

  • Open source
  • End-to-end encryption
  • Free tier available

What We Don't Like

  • Limited storage on free plan
  • Less feature-rich than competitors

Tutanota

Open-source encrypted email

8.5/10
$0/month
Best for:

Privacy-Focused Users

Get Tutanota →
#4 Startmail

Startmail

Get Startmail Now →

What We Like

  • User-friendly
  • Good privacy features
  • Custom domains

What We Don't Like

  • Higher price
  • Limited free features

Startmail

Privacy-focused email service

8.3/10
$5.00/month
Best for:

Privacy-Conscious Users

Get Startmail →
#5 Hushmail

Hushmail

Get Hushmail Now →

What We Like

  • Automatic encryption
  • Custom domains
  • Web-based access

What We Don't Like

  • Higher price
  • Limited free features

Hushmail

Secure email with encryption

8.1/10
$4.99/month
Best for:

Business Users

Get Hushmail →

How We Test Secure Email Providers

Our privacy experts have tested over 20 secure email services using rigorous methodology to ensure our recommendations are accurate and unbiased.

End-to-end encryption implementation and security audits
Privacy policy and data protection compliance
User interface and ease of use evaluation
Storage capacity and feature comparison
Customer support response time testing
Price comparison and value analysis

Frequently Asked Questions

What makes an email provider truly secure?

A secure email provider should offer end-to-end encryption, zero-access encryption, strong privacy policies, and be based in privacy-friendly jurisdictions. They should also undergo regular security audits.

Is ProtonMail better than Gmail for privacy?

Yes, ProtonMail is significantly better for privacy than Gmail. ProtonMail offers end-to-end encryption, is based in Switzerland with strong privacy laws, and doesn't scan your emails for advertising purposes.

Can I use secure email for business?

Absolutely! Fastmail and ProtonMail both offer excellent business features including custom domains, team management, and professional support. Fastmail is particularly good for business users.

Are free secure email providers safe?

Yes, Tutanota offers a robust free tier with strong encryption. However, free tiers typically have storage and feature limitations. For maximum security and features, consider paid plans.

Ready to Choose Your Secure Email?

All our recommended secure email come with money-back guarantees, so you can try them risk-free.

View All Secure Email Deals →

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Email Security Best Practices

Essential tips for protecting your email communications and maintaining privacy.

Use End-to-End Encryption

Choose email providers that offer end-to-end encryption to ensure only you and your recipient can read messages.

Enable Two-Factor Authentication

Add an extra layer of security to your email account with 2FA to prevent unauthorized access.

Verify Sender Addresses

Always verify email addresses before sending sensitive information to prevent data breaches.

Avoid Public Wi-Fi

Never access your email on public Wi-Fi networks without using a VPN for additional security.

Regular Password Updates

Change your email passwords regularly and use strong, unique passwords for each account.

Beware of Phishing

Be cautious of suspicious emails and never click on links or download attachments from unknown senders.