Best Proton Mail Alternatives in 2026
Proton Mail set the gold standard for email privacy. But it deliberately avoids AI features because they can't do them without reading your emails on their servers. These alternatives solve that paradox.
#1 TOP PICK
Inboxed
Privacy-first email with local AI. Get summaries, smart replies, and semantic search without any data leaving your Mac.
Pros
- • Free
- • 100% local AI
- • Zero cloud processing
- • Any IMAP account
Cons
- • macOS only
- • Newer app
#2
Tutanota (Tuta)
Open-source encrypted email from Germany with end-to-end encryption and a strong privacy focus.
Pros
- • Open source
- • E2E encryption
- • Affordable
Cons
- • No AI features
- • Proprietary address
- • Limited integrations
#3
Fastmail
An independent, ad-free email service with excellent search, calendars, and custom domain support.
Pros
- • Fast and reliable
- • Custom domains
- • Great search
Cons
- • $50/year
- • No AI
- • No encryption by default
#4
Canary Mail
A privacy-marketed email client with AI features and PGP encryption support.
Pros
- • PGP support
- • AI features
- • Multi-platform
Cons
- • AI is cloud-based
- • $20/year
- • Not truly private AI
Ready to make the switch?
Join thousands of users who chose privacy and intelligence.