Free secure email
for a safer world
Exchange private information safely
Reply to secure emails you receive from premium users and send 5 encrypted emails to new contacts each month.
How it works
Start a secure email from your desktop email client or your web browser. Set a challenge so only the right people gain access.
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.
Our browser app works just like an email client. Recipients download attachments, compose, and reply. (Their replies can be auto-decrypted to your Outlook inbox.)
Email freely without
risking your data
A digital world
In a digital age, it's more important than ever to prioritise online security. Email is a popular mode of communication for personal and professional purposes, but many email providers may not offer adequate protection against cyber threats.
Open to threat
Most email providers lack essential security features, leaving users vulnerable to interception and hacks. By signing up for a secure email provider that offers email encryption and authentication features for free, you can get protected.
Free secure email
No need to switch
your email account
Free secure email on any device
Secure confidential emails and attachments using our Windows Outlook add-in or the Mailock browser app.
- End-to-end email encryption
- Q&A recipient authentication
- Free secure reply for recipients
Double check your
Reach the right people, only
Authenticate recipients when they open your emails. Set a question they’ll have to answer correctly for access.
- Protect personal information
- Prevent email interception
- Comply with the GDPR
Are your emails confidential? Mailock uses end-to-end encryption to prevent email interception by cyber criminals.
No need to post a document to get proof-of-delivery. Mailock tells you when your secure emails get opened.
Secure messages and attachments with a challenge question so only the intended recipients can gain access.
Why waste paper when you can send documents faster, more efficiently, and more securely with Mailock?
Encrypt emails and attachments at the click of a button
Securely send confidential information by email, for free. Keep your data private.
Create your account
Our free plan gives you unlimited secure email replies and 5+ sends each month.
Hear from our users
Boosting Security And Engagement At Rapport Financial Strategists
This case study shows how Rapport Financial Strategists improved the security and effectiveness of their client communications using Mailock secure email.
Brearley Law Puts The Protection Of Client Data First With Mailock
According to the most recent ICO statistics, the UK legal industry is responsible for 8% of total data breach incidents reported in the past year.
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.