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Head-to-head · Secure Email Providers

Aster Mail vs eclipso Mail Europe

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Aster Mail #3 in Secure Email Providers 8.9/10 Free plan Free plan✓ 2 of 3 features Visit Aster Mail
eclipso Mail Europe #5 in Secure Email Providers 8.4/10 Free plan Free plan✓ 1 of 3 features Visit eclipso Mail

Aster Mail leads on 3 checks, eclipso Mail Europe on 0, and 3 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 scoreAster Mail · 8.9/10
  • Free planboth
  • Most featuresAster Mail · 2 of 3

Aster Mail scores higher on our rubric for secure email providers: 8.9 against 8.4 out of 10; our editors rank them #3 and #5.

Aster Mail offers custom domain; eclipso Mail Europe doesn't. Aster Mail leads on mailbox storage: 50 GB versus 10 GB. Aster Mail leads on email aliases: 15 aliases versus 10 aliases. On mail protocol support, eclipso Mail Europe gives you Imap_smtp where Aster Mail offers Bridge.

Aster Mail is the better fit for feature-rich secure email at a low price. eclipso Mail Europe is the better fit for affordable encrypted email with standard protocols.

  • Aster Mail fits best

    Feature-rich secure email at a low price

  • eclipso Mail Europe fits best

    Affordable encrypted email with standard protocols

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Side by side

Feature Aster Mail 8.9/10 Visit ↗ eclipso Mail Europe 8.4/10 Visit ↗
At a glance
Editor score 8.9 8.4
Ranking #3 in Secure Email Providers #5 in Secure Email Providers
Best for Feature-rich secure email at a low price Affordable encrypted email with standard protocols
Pricing model Free plan + paid Free plan + paid
Starting price $2.42/user/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud, Desktop, Mobile
Platforms Web, Windows, macOS, Linux, iOS, Android Web, Windows, macOS, iOS, Android
Integrations 6 integrations 3 integrations
Features Aster Mail 2/3 · eclipso Mail Europe 1/3
End-to-end encryption ✓ ✓
Custom domain ✓ (best) —
Encrypted calendar — Not checked yet
Specs
Mailbox storage 50 GB (best) 10 GB
Email aliases 15 aliases (best) 10 aliases
Mail protocol support Bridge Imap_smtp
Our review
Pros
  • Free plan includes 10 GB encrypted storage and five aliases
  • OpenPGP, tracker blocking, import, export, and mail rules
  • Web, desktop, and mobile apps plus Aster Bridge support
  • 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
  • Encrypted calendar is still in active development
  • Server code is not public, despite open-source apps and cryptography
  • Founded in 2026, so long-term maturity evidence is limited
  • 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

Aster Mail is an encrypted email service for privacy-conscious individuals, families, and teams. Its core design combines local encryption on supported devices with a zero-access encrypted mailbox architecture. Users can access mail…

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. Aster MailSecure Email Providers 8.9Free plan
  2. eclipso Mail EuropeSecure Email Providers 8.4Free plan

Strengths and trade-offs

  • Aster Mail — where it wins

    • Free plan includes 10 GB encrypted storage and five aliases
    • OpenPGP, tracker blocking, import, export, and mail rules
    • Web, desktop, and mobile apps plus Aster Bridge support

    Where it doesn't

    • Encrypted calendar is still in active development
    • Server code is not public, despite open-source apps and cryptography
    • Founded in 2026, so long-term maturity evidence is limited

  • 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