# Proton Mail

> Email service with built-in encryption so only you and recipients can read your messages

- **Canonical URI:** https://www.vioscale.ai/software/proton-mail
- **Category:** Email Clients
- **Homepage:** https://proton.me/mail
- **Also known as:** proton-mail
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-25T12:25:30.010Z

## Vioscale score

**50.2 / 100**, confidence 76% (high). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 80 | 0.052 | 4.2 | ✓ |
| reliability | 47.5 | 0.073 | 3.5 | ✓ |
| capabilities | 74.7 | 0.04877777777777778 | 3.6 | ✓ |
| integrations | 31 | 0.04066666666666666 | 1.3 | ✓ |
| security_posture | 55 | 0.073 | 4 | ✓ |
| pricing_transparency | 25 | 0.084 | 2.1 | ✓ |

## Pricing

_As of 2026-08-25, [verify at source](https://proton.me/business/pass/pricing). Independently observed._

freemium · Free tier · 14-day trial

| Plan | Price | Free | Commitment |
|---|---|:--:|---|
| Essential | - | - | - |
| Plus | - | - | - |
| Workspace Standard | - | - | - |

### Essential

Account protection for small teams

**Included limits:** notes: unlimited, logins: unlimited, credit_cards: unlimited, hide_my_email_aliases: unlimited

- Unlimited logins, notes, and credit cards
- Browser, mobile, and desktop apps
- Secure vault, item and link sharing
- Built-in 2FA authenticator
- Dark Web Monitoring
- Passkey support on all devices
- Unlimited hide-my-email aliases

### Plus

Advanced account protection with admin controls

**Included limits:** file_storage: 100 MB

- SSO and SCIM
- Access to Proton Sentinel
- File storage up to 100 MB
- SIEM integration
- Command line interface (CLI)
- Group management for organizing users

### Workspace Standard

Password manager with storage and team collaboration

**Included limits:** vpn_devices: 10, storage_per_user: 1 TB, custom_email_domains: 15

- 1 TB storage per user
- 15 custom email domains
- Secure personal and shared calendar
- Cloud storage and sharing
- User permissions and access management
- VPN connection for 10 devices per user

### Add-ons

- **Dedicated server and IP**

## About

An email platform that uses end-to-end encryption to protect message contents from server access. Funded by subscribers rather than data exploitation, it provides privacy-focused communication for individuals and businesses with features like password-protected emails, alias generation, and team management tools.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI, iOS, macOS, Web, Linux, Android, Windows
- **Deployment:** Cloud / SaaS

## Integrations (11)

_Independently observed._

- Gmail
- Outlook
- Yahoo
- Apple Mail
- Thunderbird
- Google
- Okta
- Microsoft Entra ID
- ADFS
- Edugain
- SimpleLogin

## Capabilities

_The capabilities that matter for Email Clients. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Capabilities** | |
| Deployment model | Cloud synchronization proxy |
| Universal imap smtp exchange support | ✓ |
| Keyboard shortcut only navigation speed | ✗ |
| Split inbox AI auto categorization | ✗ |
| Read receipts and open tracking | ✗ |
| Snooze and scheduled send later | ✓ |
| Generative AI LLM email drafting | ✗ |
| Conversational chat layout view | ✗ |
| Unified multi account inbox view | ✓ |
| Pgp end to end encryption support | ✓ |
| SOC2 type ii | ✗ |
| ISO 27001 | ✓ |
| Pricing model | Freemium |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://proton.me/business/pass/pricing) | 2026-08-25 | 60% (medium) |
| pricing.model | freemium | [link](https://proton.me/business/pass/pricing) | 2026-08-25 | 60% (medium) |
| pricing.price_level | low | [link](https://proton.me/business/pass/pricing) | 2026-08-25 | 60% (medium) |
| pricing.transparent | no | [link](https://proton.me/business/pass/pricing) | 2026-08-25 | 60% (medium) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.iso27001 | yes | [link](https://proton.me/nb/business/mail/security) | 2026-08-25 | 75% (high) |
| security.gdpr | yes | [link](https://proton.me/nb/business/mail/security) | 2026-08-25 | 75% (high) |
| security.hipaa | yes | [link](https://proton.me/nb/business/mail/security) | 2026-08-25 | 75% (high) |
| security.pci | yes | [link](https://proton.me/nb/business/mail/security) | 2026-08-25 | 75% (high) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 11 | [link](https://proton.me/business/pass/pricing) | 2026-08-25 | 60% (medium) |

### market

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| market.availability | `{"hqCountry":"CH","primaryMarkets":["EU","US","GB"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://proton.me/business/pass/pricing) | 2026-08-25 | 75% (high) |

### reliability

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| reliability.sla_pct | 99.95 | [link](https://proton.me/business/pass/pricing) | 2026-08-25 | 60% (medium) |

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*Source: Vioscale (https://www.vioscale.ai/software/proton-mail). Independent, evidence-based software intelligence. Cite the canonical URI.*