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Head-to-head · Secure Email Providers

Proton Mail vs eclipso Mail Europe

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Proton Mail #1 in Secure Email Providers 9.4/10 Free plan Free plan✓ 3 of 3 features Visit Proton Mail
eclipso Mail Europe #5 in Secure Email Providers 8.4/10 Free plan Free plan✓ 1 of 3 features Visit eclipso Mail

Proton Mail leads on 2 checks, eclipso Mail Europe on 0, and 4 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreProton Mail · 9.4/10
  • Free planboth
  • Most featuresProton Mail · 3 of 3

Proton Mail scores higher on our rubric for secure email providers: 9.4 against 8.4 out of 10; our editors rank them #1 and #5.

Proton Mail offers custom domain; eclipso Mail Europe doesn't. Proton Mail leads on mailbox storage: 15 GB versus 10 GB. On mail protocol support, eclipso Mail Europe gives you Imap_smtp where Proton Mail offers Bridge.

Proton Mail is the better fit for most users seeking a complete secure email suite. eclipso Mail Europe is the better fit for affordable encrypted email with standard protocols.

  • Proton Mail fits best

    Most users seeking a complete secure email suite

  • eclipso Mail Europe fits best

    Affordable encrypted email with standard protocols

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Side by side

Feature Proton Mail 9.4/10 Visit ↗ eclipso Mail Europe 8.4/10 Visit ↗
At a glance
Editor score 9.4 8.4
Ranking #1 in Secure Email Providers #5 in Secure Email Providers
Best for Most users seeking a complete secure email suite Affordable encrypted email with standard protocols
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud, Desktop, Mobile
Platforms Web, Windows, macOS, Linux, iOS, Android Web, Windows, macOS, iOS, Android
Integrations 5 integrations 3 integrations
Features Proton Mail 3/3 · eclipso Mail Europe 1/3
End-to-end encryption ✓ ✓
Custom domain ✓ (best) —
Encrypted calendar ✓ (best) Not checked yet
Specs
Mailbox storage 15 GB (best) 10 GB
Email aliases 10 aliases 10 aliases
Mail protocol support Bridge Imap_smtp
Our review
Pros
  • End-to-end encryption and zero-access storage protect messages and attachments
  • Free plan includes 1 GB storage and 1 encrypted email address
  • Bridge connects desktop clients including Outlook, Thunderbird, and Apple Mail
  • OpenPGP and S/MIME encryption with IMAP, SMTP, and POP3
  • Free plan plus paid tiers from €1.49 per month
  • Includes calendar, contacts, cloud storage, spam, and antivirus protection
Cons
  • Custom domains and expanded storage require a paid plan
  • Some desktop-client features depend on Proton Mail Bridge
  • Advanced plans may offer more capacity than light email users need
  • Freemail limits accounts to 4 GB and one email address
  • Custom domains are included only with the Business plan
  • Plans are prepaid and have minimum booking periods
Our verdict

Proton Mail is an encrypted email service for individuals, organizations, journalists, activists, and businesses. It combines end-to-end encryption for messages between Proton Mail users with zero-access encryption for stored messages and…

Read the review →

eclipso Mail Europe is a German email and cloud service for private users, professionals, and businesses. It combines webmail and mobile apps with standard POP3, SMTP, and IMAP access, making it suitable for people who want encrypted email…

Read the review →
  1. Proton MailSecure Email Providers 9.4Free plan
  2. eclipso Mail EuropeSecure Email Providers 8.4Free plan

Strengths and trade-offs

  • Proton Mail — where it wins

    • End-to-end encryption and zero-access storage protect messages and attachments
    • Free plan includes 1 GB storage and 1 encrypted email address
    • Bridge connects desktop clients including Outlook, Thunderbird, and Apple Mail

    Where it doesn't

    • Custom domains and expanded storage require a paid plan
    • Some desktop-client features depend on Proton Mail Bridge
    • Advanced plans may offer more capacity than light email users need

  • eclipso Mail Europe — where it wins

    • OpenPGP and S/MIME encryption with IMAP, SMTP, and POP3
    • Free plan plus paid tiers from €1.49 per month
    • Includes calendar, contacts, cloud storage, spam, and antivirus protection

    Where it doesn't

    • Freemail limits accounts to 4 GB and one email address
    • Custom domains are included only with the Business plan
    • Plans are prepaid and have minimum booking periods

More comparisons

All secure email providers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update