Proton Mail for Business is a secure email and calendar solution that helps small and medium‑sized businesses (SMBs) send, receive, organise, and manage professional email and calendar communications with built‑in privacy, encryption, and administrative controls. It is designed to support business‑critical communication workflows, protect sensitive information from unauthorised access, and help organisations meet data privacy and compliance requirements. Proton Mail for Business is suitable for SMBs seeking to enhance email security, centralise user management, and integrate encrypted messaging with productivity tools such as calendar scheduling. Core Business‑Focused Capabilities - End‑to‑end encrypted business email: Email content is encrypted such that only senders and recipients can read messages; Proton cannot decrypt stored emails, even for compliance or support. - Custom domain and professional addresses: Use your company’s domain for branded email addresses (e.g., name@yourcompany.com) and set catch‑all addresses. - Integrated calendar tools: Built‑in secure calendar support lets teams create, share, and schedule events alongside email, reducing the need for multiple disparate tools. - Cross‑device support & integrations: Access email and calendar securely via web, desktop, and mobile apps, and integrate with external clients through Proton Mail Bridge (e.g., Outlook, Apple Mail, Thunderbird). Productivity & Workflow Features - Inbox organisation tools: Advanced filters and folders automatically sort incoming mail; labels help categorise messages for efficient workflow. - Email automation: Schedule messages, create autoresponders, snooze emails, and automate forwarding to help manage busy inboxes. - AI‑assisted writing support: Proton Scribe, a privacy‑preserving assistant, can help draft and proofread messages without exposing content to external servers. - Brand customisation & communication tools: Personalise workspaces with logos, set up email groups for team distribution lists, and adjust layouts with theme options for accessibility and consistency. Security, Compliance & Administrative Control - Strong regulatory support: Proton Mail helps SMBs comply with GDPR, HIPAA, CCPA, and other privacy regulations through default end‑to‑end encryption and zero‑access architecture. - Swiss data protection: Hosted under Swiss privacy laws, which restrict forced access to data, giving additional legal protections compared to some other jurisdictions. - Admin panel & user management: Centralised controls allow administrators to add/remove users, set storage limits, enforce two‑factor authentication (2FA) or hardware key policies, and manage permissions across the business domain. - Advanced threat protection: Proton Sentinel combines AI and human analysis to help identify and block attempted account breaches and other threats. Business Use Case Value - Professional communication continuity: A centralised email system with domain‑based addresses improves brand consistency and operational communication. - Improved security posture: Reduces risk from phishing, interception, and data leaks by encrypting messages and supporting spam filtering and policy enforcement. - Team productivity & coordination: Built‑in calendar collaboration and organisation tools help teams plan and coordinate without switching between multiple apps. Proton Mail for Business combines encrypted communication with practical organisational tools and administrative oversight, positioning it as a comprehensive and secure email platform for SMBs that prioritise privacy and compliance in their digital communications.