Top Free Email Encryption Software

Paubox is a HIPAA compliant email security platform designed for healthcare organizations. It provides outbound email encryption and AI-powered inbound email protection, helping organizations safeguar

Proofpoint’s Core Email Protection (CEP) stops 99.99% of all email threats before they become compromises. It stops the broadest range of email cyberattacks, spam and graymail. For security analysts,

Tresorit is an end-to-end encrypted, zero-knowledge content collaboration platform that enables security-conscious companies to manage, sync, sign, and share their files safely. Unlike other public cl

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

NeoCertified provides secure email encryption for businesses and individuals alike. With no sales minimums, no setup fees, and a fully-refundable product guarantee, NeoCertified is the simple, easy-to

Spike is an AI-powered email and team communication platform that combines email, chat, meetings, and collaboration tools into a single, organized workspace. It is designed for professionals, small te

RMail® is the e-security platform by RPost®, a global leader since 2000. RMail specializes in elegantly easy to use email encryption for privacy and compliance, e-signatures, legal e-delivery proof, s

KnowBe4 Cloud Email Security is a comprehensive AI-powered email protection platform that defends against sophisticated inbound and outbound email threats, transforming email from organizations' large

Encyro lets you send secure files to any email address. Stop wasting time inviting clients, setting up shared folders, or configuring permissions. Receive secure messages and files from clients withou

Kiteworks’ mission is to empower organizations to effectively manage risk in every send, share, receive, and save of sensitive content. To this end, we created a platform that delivers content governa

Canary learns how you email. It can write your emails, surface what needs attention, silence spam, and much more. Say hello to your Inbox Copilot.

PreVeil’s encrypted Email & Drive platform is used by over 2,000 organizations to improve their security & achieve CMMC & ITAR compliance. PreVeil can be deployed in hours & is easy to

365 Total Protection is the only solution on the market to cover all aspects of security, compliance and backup for Microsoft 365. Choose from various bundles to suit your business needs, and enjo

Unevasive Detection and Sanitization. Email Security without Delay. Clearswift offers the industry’s most effective layer of real-time email inspection to detect and completely sanitize evasive threa

Hornetsecurity’s Spam and Malware Protection service is a best-in-class, cloud email filtering solution that keeps your inbox free from unwanted emails. With proven features and thorough spam filterin