Proton Mail free tier includes Proton Free offers 500 MB storage (expandable to 1 GB), 1 user, and 1 encrypted email address. Catalogue date September 2026.

Proton Mail Free Tier 2026 caution

Why caution: discovered 2026-09-05 · effective date unknown — The free tier now offers 500MB of storage, expandable to 1GB by completing a checklist. Previously 1GB. Source ↗ Full history ↓

A verdict here is not a fixed property of the vendor. A one-off pricing event demotes a vendor while its recorded date falls in the last 180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn, a product retired — does not lapse with time. This one rests on a record discovered 2026-09-05 · effective date unknown, so it lapses on 2027-03-05 unless we record something new first.

Limits, pricing history. Catalogue date September 2026. Last updated 2026-09-22.

Proton Mail's free tier offers Proton Free offers 500 MB storage (expandable to 1 GB), 1 user, and 1 encrypted email address. We rate it caution — one recorded limit reduction, discovered 2026-09-05.

One of 4 Consumer Email services we track. See our Consumer Email category →
Tier
Free
Category
Pricing Page
Catalogue date
2026-09-22
Read from the vendor's page
2026-09-05
Last read
2026-09-22
The day we last read the vendor's page. The terms above come from our read of 2026-09-05, and we have read the page since, on 2026-09-22, without confirming them. We hold no confirmation of the terms we publish.

Free Tier Details

Proton Free offers 500 MB storage (expandable to 1 GB), 1 user, and 1 encrypted email address.

We read that on 2026-09-22 from https://proton.me/mail/pricing, and our check recorded: the page names Proton Mail as "proton mail" and states "$0.00".

When You'll Outgrow Proton Mail's Free Tier

Pricing Change History (1 recorded)

The free tier now offers 500MB of storage, expandable to 1GB by completing a checklist. Previously 1GB. Source ↗
Before: 1 GB storage. 150 messages/day send limit. 1 email address. End-to-end encrypted. Zero-access encryption. No custom domains, no filters, no auto-reply on free. Swiss privacy jurisdiction.
After: Proton Free offers 500 MB storage (expandable to 1 GB), 1 user, and 1 encrypted email address.

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Watch Proton Mail for Pricing Changes

We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.

curl https://agentdeals.dev/api/changes?vendor=Proton%20Mail curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=Proton%20Mail

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Query via MCP

Look up Proton Mail programmatically with the AgentDeals MCP server:

{ "tool": "search_deals", "arguments": { "query": "Proton Mail", "limit": 5 } }

Frequently Asked Questions

Is Proton Mail free?
Yes, Proton Mail offers a free tier: Free. Proton Free offers 500 MB storage (expandable to 1 GB), 1 user, and 1 encrypted email address.
What is Proton Mail's free tier?
Proton Mail's free tier is called "Free". Proton Free offers 500 MB storage (expandable to 1 GB), 1 user, and 1 encrypted email address.
Is Proton Mail's free tier reliable?
Proton Mail's free tier requires caution because of one specific recorded change, discovered 2026-09-05: The free tier now offers 500MB of storage, expandable to 1GB by completing a checklist. Previously 1GB. Source: https://proton.me/mail/pricing
Is Proton Mail's free tier good for production?
Proton Mail's free tier is usable for prototyping and development, but we rate it caution because of one recorded limit reduction, discovered 2026-09-05. Consider alternatives with more stable pricing for critical services.
What changed in Proton Mail's pricing?
Proton Mail has had 1 recorded pricing change. Most recently: The free tier now offers 500MB of storage, expandable to 1GB by completing a checklist. Previously 1GB. Source: https://proton.me/mail/pricing (discovered 2026-09-05).
When will I outgrow Proton Mail's free tier?
When your usage exceeds the free tier limits, you'll need to upgrade. When you outgrow the free tier, evaluate paid plans against alternatives — sometimes a competitor's free tier covers what you need.
What category is Proton Mail in?
Proton Mail is categorized under Consumer Email on AgentDeals.

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