Mailock® Enterprise

Protect critical

customer comms

Your secure email gateway (SEG)

Exchange confidential information safely at high volume. Use our secure email gateway for friction-free customer comms.

Woman smiling in offer using laptop to secure emails next to colleagues

Why Mailock?

Prevent the worst,

communicate better

Engage your customers safely

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

  • Exchange highly sensitive data
  • Comply with FCA/ICO guidance
  • Create a branded recipient experience
SEG manager in office using secure email

How it works

1. Receive

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

Receiving a Mailock email

2. Identify

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

Securing a message with a text

3. Reply

If people 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


Encrypt data

Protect against interception

Deliver confidential information using end-to-end email encryption to prevent interception and protect customers from fraud.

Send enterprise secure email


Identify recipients

Prevent unauthorised access

Set recipient authentication challenges to guarantee delivery to the right people and guard data in the event of human 'misfires'.

Read enterprise secure email


Drive engagement

Empower customers to reply

Recipients can read messages, download attachments, and reply securely for free by connecting their existing email address.

Reply enterprise-1
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.


Guarantee email
data compliance

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

Encrypt personal information (GDPR)

The Information Commissioner's Office (ICO) and Financial Conduct Authority (FCA) require businesses to encrypt sensitive data transferred digitally. The ICO can levy fines of up to £17m for non-compliance (or 4% of turnover).

Record proof-of-delivery (MIFID II)

All businesses should record digital communications and retain proof-of-delivery to align with ICO guidance. Proof-of-receipt is required by the FCA for certain types of document (e.g., KIDs).

Protect customers (Consumer Duty)

Are you encouraging customers to send their information into your business unsecured? The FCA Consumer Duty is a mandate to provide easy-to-understand communications and protect customers from financial harm.


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


Advanced 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, and advanced automation controls.

Scalable volume

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


Built around you

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

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.


Download the Mailock
Enterprise Data Sheet

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
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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.

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How The Right Mortgage Keeps Email Data Safe With Mailock
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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.

3 min read
Securing Client Communications At Thanks Wealth Planning
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Securing Client Communications At Thanks Wealth Planning

Personal information is abundant within financial services. This case study shows how Thanks Wealth Planning increased security for their communications.