Mailock® Enterprise

Protect critical

customer comms

Your secure email gateway (SEG)

Exchange confidential information using our advanced secure email gateway for friction-free customer comms.

Woman smiling in offer using laptop to secure emails next to colleagues (5)

Why Mailock?

Prevent the worst,

communicate better

Engage your customers safely

Mailock Enterprise enables company-wide secure email communications. Protect sensitive information with a seamlessly integrated secure email gateway.

  • Enable confidential communications
  • Comply with FCA/ICO/ESMA guidance
  • Create a branded recipient experience
SEG manager in office using secure email


Exchange securely

Protect against interception

Protect confidential information with secure end-to-end email encryption. Advanced key management makes sure only authenticated recipients gain access.

Send enterprise secure email
Threat vectors:

Human error

Our unique identity challenge processes ensure that sensitive misdirected emails remain encrypted; only identity verified recipients can open your encrypted messages.

Cyber threat

Messages and attachments are protected throughout their journey with military-grade AES-256 encryption ciphers.


Identify recipients

Prevent unauthorised access

Set authentication challenges that recipients must pass to open messages. They'll receive a ‘read my message’ email to guide them through the process safely.

Read enterprise secure email
Challenge options:

Mailock challenges

Use Mailock's toolbox of user accessible challenges, including question-and-answer, SMS (and ID&V - coming soon).

Third-party integrations

Connect with third-party authentication applications such as Unipass to verify identity using industry-specific challenges.


Use the Mailock API to set SMS challenges using your Customer Relationship Management (CRM) platform data.

Coming soon: identity document verification

Authenticate identity by email using a passport or driver's licence and utility bill.


Drive engagement

Empower customers to reply

Recipients can read messages or download attachments without creating an account, and then connect their email to reply for free.

Reply enterprise-1
How it works:

1. Receive

Recipients receive a notification email to let them know they have a secure message waiting to be opened.

Receiving a Mailock email

2. Identify

Recipients click ‘Open’ on the notification delivered to their inbox. They’ll answer an identity challenge, or if they're trusted, they can read right away.

Securing a message with a text

3. Reply

If recipients need to reply to a secure message, they can use Mailock to compose, attach, and reply using their existing email address and account.

Secure compose using our web app
Receiving a Mailock email
Securing a message with a text
Secure compose using our web app


Guarantee email
data compliance

Protect data in line with regulatory guidance using the most secure email gateway.


"Have a policy governing encrypted email, including guidelines that enable staff to understand when they should or should not use it. For example, there may be a guideline stating that any email containing sensitive personal data (either in the body or as an unencrypted attachment) should be sent encrypted."

"[in the event of a data breach] act quickly. Try to recall the email as soon as possible. If you can’t recall it, contact the person who received it and ask them to delete it. The 72 hours following a personal data breach are particularly critical."


"Keep a copy of relevant electronic communications, made with, sent from or received on equipment: (1) provided by the firm to an employee or contractor; or (2) the use of which by an employee or contractor has been sanctioned or permitted by the firm."


"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.”


It shows we take protecting customers' private data seriously,

with an industry standard platform they can use to send and receive free-of-charge.

 John McGlynn  Royal London
Man looking at laptop with secure email


Comprehensive outbound security

Our secure email gateway gives you the tools to protect all your sensitive email exchanges.


Email encryption

Secure sensitive emails and attachments by obscuring data with military strength AES-256 encryption.


M365 integration

Integrate Mailock with your M365 exchange alongside your CRM, antivirus, and server-side signature.


Recipient authentication

Set recipient authentication challenges including email verification, SMS, question-and-answer, and Unipass ID.

Robust revocation

Messages can be revoked at user or admin level, immediately restricting access to lock down a breach.


Error prevention

Prompt users to send a message securely if it contains particular preset or custom keywords or ‘trigger words’.

Flexible configuration

Configure how encryption is initiated for sensitive emails (e.g., Outlook add-in, keywords, rule-based, automated).

Secure audit trails

Timestamped audit trails track message opens, clicks, and downloads for proof-of-delivery and compliance.


Advanced interfacing

Tap into the Mailock API for revocation, audit trails, MI/BI analytics, batched and bulk automated encryption.

Scalable volume

Deliver at scale with Mailock Automated, an optional add-on for batched and bulk delivery using automation.

Download the Mailock
Enterprise Data Sheet

Simple set up and deployment (2)

Managed service

Use our managed cloud appliance or host it in your own infrastructure with our support.


Storage location

Host your encrypted data in our default EU location or on your dedicated server.



Customise Mailock browser apps and notifications for a branded experience.



Configure your gateway to support multiple brands- for you or your clients.



Choose between single tenant or multi-tenant plans to suit your budget and usage volume.


Encryption triggers

Choose between automated and manual options for triggering the encryption process.

Team doing plastic cleanup and bumping elbows

Save paper

Strengthen your environmental, social, and governance (ESG) 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 copy (1)

Cut costs

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

Man anxious about having sent unsecured email

Protect data

Free your business from open-risk email. Protect messages and files from cyber threat and human error. Comply with regulatory guidance including GDPR and MIFID II.

IT team looking at demo email security software (1)

Pricing & plans

Compare plans

Find the right Mailock package for your business.

Case studies

  Hear from our users

1 min read
Woman Typing On Laptop And Smiling in Office With Colleagues.jpg
28 10 21

Why Mailock And Paragon Were Chosen By HSBC Security Services

Mailock, Beyond Encryption’s (BE) market leading email security system, has been selected by HSBC Security Services.

2 min read
How The Right Mortgage Keeps Email Data Safe With Mailock
03 11 21

How The Right Mortgage Keeps Email Data Safe With Mailock

The Right Mortgage’s forward-thinking approach to data protection using Mailock email encryption frees them from communications risk.

2 min read
How Aegon Saved an Estimated 270 Tonnes of CO2 Using Unipass Mailock
08 04 22

How Aegon Saved An Estimated 270 Tonnes Of CO2 Using Unipass Mailock

Learn how Aegon, a leading provider of life insurance, pensions and asset management, saved an estimated 270 tonnes of Co2 using Unipass Mailock.