Compare the Top Email Encryption Software in the UK as of October 2026

What is Email Encryption Software in the UK?

Email encryption software ensures the confidentiality and integrity of email communications by converting messages into unreadable formats that can only be decrypted by authorized recipients. It uses encryption protocols such as S/MIME and PGP to protect sensitive information from interception, eavesdropping, and unauthorized access. The software helps organizations comply with data privacy regulations like GDPR, HIPAA, and CCPA by securing emails containing personal or financial information. Email encryption can be applied at the message level, attachment level, or entire inbox, providing versatile protection for both internal and external communications. By safeguarding email content, businesses can reduce the risk of data breaches, maintain customer trust, and avoid costly compliance fines. Compare and read user reviews of the best Email Encryption software in the UK currently available using the table below. This list is updated regularly.

  • 1
    RMail

    RMail

    RPost

    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, secure file sharing, email impostor protection, document rights management, and AI-infused services to prevent data leaks and human e-security errors. RMail’s transmission e-security services are most often used by businesspeople or business systems that send important, sensitive, or consumer-regulated information. These RMail services are generally applied to those messages where the sender needs functionality beyond standard email in terms of (a) easier to use and more automated email encryption for privacy compliance, (b) returning a verifiable proof record of who said what to whom by email, (c) assurance and peace of mind related to delivery and open status of important and time-deadline email, (d) need a timestamped proof of content delivered, (f) need to share large files securely.
    Starting Price: $7/month/user
  • 2
    BlueFiles

    BlueFiles

    Forecomm

    How do you do today when you need to quickly send a confidential file or email to a customer, partner, or employee outside of your company, outside the secure network? CNIL strongly advises businesses and organizations to " use data encryption during transfers " and " have people trained in the risks ". Data encryption is a central part of the modern data protection strategy. Using specialized encryption, like BlueFiles, companies can encode their data so that it becomes indecipherable to anyone but the intended recipient. BlueFiles provides a real guarantee on all your digital data transfers: Integrity of the BlueFiles file, 100% confidentiality, remote control of the files sent, and tracking. Save time, ease of use, and lower costs, we need to communicate with confidence over the Internet without the risk of our sensitive data being disclosed. Under the GDPR law, companies must take steps to encrypt their personal data flows or face high fines.
  • 3
    Z1 SecureMail Gateway
    25% of the 100 German companies with the highest turnover choose Zertificon. Z1 SecureMail Gateway is our highly automated Enterprise Email Encryption solution for effortless, secure communications with anyone, anywhere. Your entire organization encrypts and decrypts, just as well manages & verifies email signatures smoothly in the background. Z1 SecureMail Gateway requires minimal maintenance. And the browser-based admin interface needs no special skills. Keys are managed automatically & central policies enforce security. Integration is fast into your Cloud or On-premises email infrastructure. Your workflows and business are uninterrupted — no employee training needed plus frictionless experience for recipients. With Z1 SecureMail Gateway, encryption is centrally configurable and proofed against human error. You easily achieve and maintain compliance and the highest security standards. You also own all encryption keys and attain German-engineered data sovereignty with no backdoors.
    Starting Price: from $ 1.50 per user/per month
  • Previous
  • You're on page 1
  • Next