[Compare · Email-First Hosting]

Posteo vs Proton Mail

PosteoIndie

8.5/ 10

Higher score

Proton MailIndie

9.0/ 10

Across 4 measured dimensions: Posteo wins 1, Proton Mail wins 1 (2 tie / n/a)

[01]

Side by side.

8 dimensions

Metric	Posteo	Proton Mail
Score Winner: right	8.5	9.0
Δ 90 days	— flat	— flat
Parent & badge	IndependentIndie	IndependentIndie
Founded	2009	2014
Best for	privacy-first email without the fluff	privacy junkies who want real encryption
Price per mo Winner: left	$1.10/ mo	$3.99/ mo
Renewal multiplier	—	—
Tagline	€1/month ethical mail — no custom domain, ever	Swiss end-to-end encrypted mail, free tier is real

[02]

What works, what doesn't.

Per provider

Posteo4 pros · 4 cons

+ Pros

✓Flat €1/month, all included
✓Accepts anonymous cash payment
✓Runs on 100% renewable energy
✓Strong privacy stance with PGP-in-browser

– Cons

✗No custom domain support, ever
✗Must use @posteo.* address
✗Extra storage costs more
✗No mobile app, needs IMAP client

Proton Mail5 pros · 4 cons

+ Pros

✓Real end-to-end encryption
✓Swiss jurisdiction for privacy
✓Usable free tier, 1GB storage
✓Custom domains on paid plan
✓Independent, not corporate-owned

– Cons

✗IMAP needs Proton Bridge app
✗Full E2E only with Proton users
✗Slow search on encrypted mail
✗Pricey compared to Migadu/Posteo

Make the call

Pick one and go.

Both links are affiliate. Score doesn't move because of it.

VisitPosteo ↗Score 8.5 VisitProton Mail ↗Score 9.0

← Read full Posteo review·Read full Proton Mail review →

[03]

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