Mailock® Free

Free secure email

for a safer world

Exchange private information safely

Connect your email to exchange encrypted messages and files for free. Protect data from interception and fraud.

Man in office securing email and smiling with a coffee cup

Outbound security

Secure email

on any device

No need to switch providers

Send secure emails and attachments from Windows Outlook or the web. Securely exchange data from your inbox, for free.

  • End-to-end email encryption
  • Multi-factor authentication
  • Recipients reply for free
People in office encrypting emails

Q&A authentication

Always hit

your mark

Reach the right people, only

Verify recipients' before they can open your emails. Set a Q&A challenge - a question they must correctly answer for access.

  • Prevent unauthorised access
  • Comply with UK regulation
  • Protect personal information
Man in office encryption email (new free page)
97K
Users
1.8K
Companies
450K
Recipients

Benefits

Email freely without
risking your data

couple receiving secure email at home
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Protect data

Are your emails confidential? Mailock uses end-to-end encryption to prevent email interception by cyber criminals.

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Reduce admin

No need to post your document to get confirmation of delivery. Mailock read receipts have you covered.

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Prevent misfires

Secure messages and attachments with a challenge question, so only the intended recipients can gain access.

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Save carbon

Why waste paper when you can send documents faster, more efficiently, and more securely with Mailock?

Testimonial

Impresses clients!

Clients are very impressed with the security and the knowledge that their personal information and documents are safe.

 Craig  Mortgage adviser
Adviser and client looking at secure email on mobile device

How it works

Step-by-step

1. Encrypt

Start a secure email from your desktop email client or your web browser. Set a challenge so only the right people gain access.

Start a secure email with a button in your email client

2. Connect

Recipients click ‘Open’ on the notification delivered to their inbox. They’ll answer your challenge in our browser app, or, if they're trusted, they’ll open and read right away.

Challenge question Mailock UX (1)

3. Engage

Our browser app works just like an email client. Recipients download files, compose, attach, and reply. Their replies will be automatically decrypted to your inbox.

Secure read pane in Mailock web app
Start a secure email with a button in your email client
Challenge question Mailock UX (1)
Secure read pane in Mailock web app

Features

Encrypt emails and attachments at the click of a button

Securely send confidential information by email, for free. Keep your data private.

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Compose

Send secure emails from Windows Outlook or our secure web app. Click the Mailock icon to get started.
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Encrypt

Deliver emails and attachments with end-to-end AES-256 encryption - the NSA standard for classified data.

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Challenge

Emails sent to the wrong person are a top cause of data loss. Set challenges to so only the right people open.

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Empower

Recipients reply securely for free - empower partners and clients by giving them a safe way to respond.
Man in office securing email and smiling with a coffee cup (1) (1)

Get started

Secure your outbox

Our free plan gives you 5 secure sends every month (and unlimited secure email replies!).

Case studies

  Hear from our users

2 min read
Securing Client Communications At Stonebridge Financial
FinServ
21 12 22

Securing Client Communications At Stonebridge Financial

Find out how Stonebridge Financial secured their email communications using Mailock, driving efficiency and engagement with their clients in the process.

3 min read
Securing Client Communications At Thanks Wealth Planning
FinServ
11 11 22

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.

3 min read
How Mailock Secures Sensitive Emails At Genius Wealth Management
FinServ
22 07 22

How Mailock Secures Sensitive Emails At Genius Wealth Management

How Mailock Secures Sensitive Emails at Genius Wealth Management. Did you know that 70% of financial firms in the UK experienced cyberattacks in 2020?