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Head-to-head · Email Hosting

Proton Mail vs Inbox.eu Business Email

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Proton Mail #5 in Email Hosting 8.8/10 Free plan Free planFree trial✓ 0 of 3 features Visit Proton Mail
Inbox.eu Business Email #6 in Email Hosting 8.7/10 30-day trial Free trial✓ 3 of 3 features Visit Inbox.eu

Proton Mail leads on 1 check, Inbox.eu Business Email on 1, and 3 are even. Who comes out ahead on the 5 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 · 8.8/10
  • Free planonly Proton Mail
  • Free trialboth
  • Most featuresInbox.eu Business Email · 3 of 3

Proton Mail scores higher on our rubric for email hosting: 8.8 against 8.7 out of 10; our editors rank them #5 and #6.

Proton Mail offers free plan; Inbox.eu Business Email doesn't. Inbox.eu Business Email leads on storage per mailbox: 100 GB versus 15 GB.

Proton Mail is the better fit for privacy-conscious users wanting polished encrypted email. Inbox.eu Business Email is the better fit for very low-cost hosted mailboxes.

  • Proton Mail fits best

    Privacy-conscious users wanting polished encrypted email

  • Inbox.eu Business Email fits best

    Very low-cost hosted mailboxes

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Proton Mail 8.8/10 Visit ↗ Inbox.eu Business Email 8.7/10 Visit ↗
At a glance
Editor score 8.8 8.7
Ranking #5 in Email Hosting #6 in Email Hosting
Best for Privacy-conscious users wanting polished encrypted email Very low-cost hosted mailboxes
Pricing model Free plan + paid Paid
Starting price $3.99/user/mo €9.99/user/yr
Free plan ✓ (best) —
Free trial 14 days 30 days
Free trial length 14 days · no card needed 30 days · no card needed
Money-back guarantee 30 days 60 days
Deployment Cloud, Desktop, Mobile Cloud, Mobile
Platforms Web, Windows, macOS, Linux, iOS, Android Web, iOS, Android
Support Email, Live chat, Tickets, Docs Email, Phone, Docs · 24/7
Compliance GDPR, 2FA GDPR, SSO/SAML, 2FA
Integrations 4 integrations 8 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Proton Mail 0/3 · Inbox.eu Business Email 3/3
IMAP/POP support Not checked yet ✓ (best)
Calendar included Not checked yet ✓ (best)
Migration tools Not checked yet ✓ (best)
Specs
Storage per mailbox 15 GB 100 GB (best)
Email aliases Not checked yet 5 aliases
Attachment limit Not checked yet Not checked yet
Mobile app access Not checked yet Native
Our review
Pros
  • End-to-end encryption between Proton Mail users
  • Zero-access encryption for stored messages and attachments
  • Custom domains, aliases, filters, and tracker blocking
  • €0.83/user/month when billed annually
  • 100 GB mailbox storage plus 100 GB shared domain storage
  • IMAP, POP3, SMTP, migration tools, and mobile apps
Cons
  • Free plan includes only 1 GB of storage
  • Custom domains require a paid plan
  • Bridge is needed for desktop email client access
  • No free plan beyond the 30-day trial
  • The paid plan is billed annually
  • Platform coverage is narrower than broader business suites
Our verdict

Proton Mail is an encrypted email service for individuals, organizations, journalists, activists, and businesses. It provides web, desktop, and mobile applications across Windows, macOS, Linux, iOS, and Android. Proton Mail users can send…

Read the review →

Inbox.eu Business Email is a hosted business email service for companies and teams using custom domains. It provides branded mailboxes, unlimited mailboxes, 100 GB of mailbox and file storage per user, 100 GB of shared storage per domain,…

Read the review →
  1. Proton MailEmail Hosting 8.8Free plan
  2. Inbox.eu Business EmailEmail Hosting 8.730-day trial

Strengths and trade-offs

  • Proton Mail — where it wins

    • End-to-end encryption between Proton Mail users
    • Zero-access encryption for stored messages and attachments
    • Custom domains, aliases, filters, and tracker blocking

    Where it doesn't

    • Free plan includes only 1 GB of storage
    • Custom domains require a paid plan
    • Bridge is needed for desktop email client access

  • Inbox.eu Business Email — where it wins

    • €0.83/user/month when billed annually
    • 100 GB mailbox storage plus 100 GB shared domain storage
    • IMAP, POP3, SMTP, migration tools, and mobile apps

    Where it doesn't

    • No free plan beyond the 30-day trial
    • The paid plan is billed annually
    • Platform coverage is narrower than broader business suites
  • Proton Mail8.8/10 · Free plan

    A polished encrypted email service with a capable free plan and paid custom-domain support.

    Visit Proton MailFull verdict →
  • Inbox.eu Business Email8.7/10 · 30-day trial

    A low-cost hosted email service with generous storage and practical migration tools.

    Visit Inbox.euFull verdict →

More comparisons

All email hosting comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update