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What is Proton Mail?

Proton Mail for Business offers a secure and professional email solution trusted by 50,000 organizations. Built with end-to-end encryption and protected by Swiss privacy laws, Proton Mail ensures your sensitive information is safe from unauthorized access and data leaks. Whether you're a small business or a large organization, you can ensure regulatory compliance, reinforce client trust, and keep your communications safe. Easily migrate your team from Google or Microsoft, use your own email domain for your communications, and manage your schedule with Proton Calendar — all in a user-friendly, privacy-focused platform.

What is KMail?

KMail is the email client integrated into Kontact, the comprehensive personal information management suite offered by KDE. The application comes with default settings that emphasize core functionalities while maintaining strong security and privacy protocols. Users benefit from extensive end-to-end encryption options, including built-in support for OpenPGP and S/MIME, along with an intuitive setup wizard that simplifies the process of encryption and key generation. In addition, KMail provides transport encryption via SSL/TLS and supports diverse authentication mechanisms, such as GSSAPI (Kerberos) and OAuth2. The program also ensures robust protection for HTML content, effectively blocking any hidden external references in emails that might jeopardize user privacy or expose sensitive data. To enhance security further, KMail includes a phishing protection feature that warns users about potentially harmful links found in their emails. Additionally, it offers spam protection capabilities, allowing for seamless integration with well-known local spam filtering tools like SpamAssassin or Bogofilter, which helps users efficiently handle unwanted messages. With its array of functionalities, KMail creates a secure and user-centric email management experience that caters to the needs of its users. The combination of sophisticated security measures and user-friendly features makes KMail a preferred choice for those seeking a reliable email client.

Media

Media

Integrations Supported

All-in-One Messenger
Authy
Canary Mail
Disroot
Franz
KDE Plasma
Mail Backup X
Microsoft Outlook
Postbox
Proton Calendar
Proton Pass
ProxiedMail
Rambox
ReciteMail
SSuite NetSurfer
SSuite NetSurfer Prometheus
Sales Robots
Shift
SpamAssassin
WebCatalog Desktop

Integrations Supported

All-in-One Messenger
Authy
Canary Mail
Disroot
Franz
KDE Plasma
Mail Backup X
Microsoft Outlook
Postbox
Proton Calendar
Proton Pass
ProxiedMail
Rambox
ReciteMail
SSuite NetSurfer
SSuite NetSurfer Prometheus
Sales Robots
Shift
SpamAssassin
WebCatalog Desktop

API Availability

Has API

API Availability

Has API

Pricing Information

$6.99/user/month
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Proton AG

Date Founded

2014

Company Location

Switzerland

Company Website

proton.me/business/mail

Company Facts

Organization Name

KDE

Date Founded

1996

Company Location

Germany

Company Website

kontact.kde.org/components/kmail.html

Categories and Features

Calendar

Calendar Sync
Collaboration Tools
Multi-Device Support
Reminders
Room Booking
Scheduling
Task Manaagement

Email Management

Data Recovery
Email Archiving
Email Deletion
Email Discovery
Email Monitoring
Email Recall
Queue Manager
Response Management
Routing
Shared Inboxes
Signature Management
Spam Blocker
Whitelisting / Blacklisting

Encryption

Central Policy Enforcement
Drag & Drop UI
Email Encryption
Encryption Key Management
Endpoint Encryption
File Compression
File Encryption
Full Disk Encryption
Public Key Cryptography
Tokenization / Data Masking

Categories and Features

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