Mailock Enterprise

Enterprise email encryption gateway

Award-winning business mail flow security

Deploy our award-winning email encryption gateway to your on-premise or cloud mail server. Protect valuable comms. Encrypt, send, and gain intelligence with Mailock.

woman smiling in office using email encryption software

Key Features

Secure every
confidential email

Our award-winning email gateway sits on your mail server or the cloud, encrypting all your confidential communications.

AES-256 Encrypted

AES-256 Encrypted

Encrypt emails sent from your integrated mail server with award-winning, advanced encryption.

ICO Compliant

ICO Compliant

View a live trail of who opens your emails, when. ISO 27001 guidance says auditable comms is essential.

Zero Friction

Zero Friction

Deploy alongside your CRM, antivirus, server-side signature, and data loss prevention (DLP).

Policy Adaptable

Policy Adaptable

Set up custom trigger word alerts to configure Mailock to your business' key security concerns.

Fully Configurable

Fully Configurable

Centrally configure how email encryption can be initiated by Mailock system users.
Flexible Control

Flexible Control

Use our API for message revocation, audit trails, batched and automated encryption.

Read and reply

Empower your customers

Recipients read and reply free

Empower customers to reply, with the knowledge their data is secure. Mailock® drives engagement - 60% of Mailock emails are opened the same day they’re sent.

customer sitting in living room on floor looking at tablet


74% of data breaches happen by email

ICO Data Security & Incident Trends Q2 2021

 "It’s good for the business to be able to demonstrate that we have taken steps to protect data and be in line with GDPR."

Rob Hastings Operations & Compliance
Manager in office with two women talking about cyber security


“Personal data shall be: processed in a manner that ensures appropriate security of the personal data, including protection against unauthorised or unlawful processing and against accidental loss, destruction or damage, using appropriate technical or organisational measures ('integrity and confidentiality').” — ICO, 2021


“An investment firm shall have sound security mechanisms in place to guarantee the security and authentication of the means of transfer of information, minimise the risk of data corruption and unauthorised access and to prevent information leakage maintaining the confidentiality of the data at all times.” — ESMA, 2021

ISO 27001

“You should use encrypted communication channels when transmitting personal data. You should have an encryption policy in place that governs how and when you implement encryption, and you should also train your staff in the use and importance of encryption. When storing or transmitting personal data, you should use encryption and ensure that your encryption solution meets current standards.” — ICO, 2021


Transform your communications

Make email a force for good, meet your goals, and reduce your costs while you're at it.

people cleaning litter to reach ESG company goals

Reach ESG goals

Strengthen your environmental, social, and governance proposition. Businesses with strong ESG goals achieve higher equity returns and reductions in bottom-line risk.

budget meeting with financial controller explaining cost cutting initiatives

Cut operational costs

Over 9.5 million documents are sent in the UK each year, the vast majority by businesses. In the UK financial services industry alone, digitising print and post operations could save £1.3 bn.

man stressed at sending unsecured email to the wrong person

Protect data

The most common cause of data exposure is sending an email to the wrong person. Cover your staff and any sensitive information you send with Full Revoke, available via the Mailock API.


Bilateral security

Cybercrime is rising, but it's not the most common cause of data loss. Sending an email to the wrong person is the number one source of incidents. That's why Mailock doesn't just encrypt, it also covers messages in case of human error.

Human error

Ensure even emails sent to the wrong recipient remain secure by giving users the power of immediate recall. Access Full Revoke functionality through the Mailock API for easy integration with existing infrastructure.


Fortify your business against bad actors. With military-grade AES-256 encryption, Mailock safeguards your confidential data on its digital journey as well as at rest on your mail server and your recipients'.

Man sending email to the wrong person on laptop at conference while busy
IT expert standing by servers in corporate office configuring email security

For the techies...

  • Virtual Appliance for easy deployment; support for VMWare & HyperV (others on request).
  • Administration website providing configuration and system health monitoring.
  • Server-side encryption/decryption respects all other software in the SMTP mail flow such as CRM, Anti-Virus, Server-Side Signature, Data Loss Prevention.
  • Bespoke X-headers are used to prevent email looping.
  • Can be deployed ‘on premise’ or into cloud environments (Office 365, Exchange Online Protection compatible).
  • All messages are encrypted in transit and at rest within the Gateway.
  • Outbound emails secured via OTP email verification or Unipass (SMS and question and answer authentication available as an add-on dependant on integration scope).
  • Unique key management system ensures that Beyond Encryption has no access to your content.
  • Scalable and resilient (scale gateway VM core resources and services and / or deploy multiple load-balanced VM’s).
  • Penetration tested by third-party Lloyds Register security company: Nettitude.
IT team looking at demo email security software

Mailock Enterprise

Book a demo

Get a technical walkthrough to see how our Mailock Enterprise gateway solution could help protect your business and customers.