Mailock® Pro

Keep client email
exchanges safe

Secure email for business freedom

Encrypt confidential business email exchanges and protect clients from fraud. Make a commitment to data protection.

Man reading an encrypted email on a laptop

Multi-factor authentication

Make sure the right
person is reading

Set read challenges for recipients

  • SMS: Send a one-time code to your recipient's mobile device.
  • Q&A: Ask your recipient a question only they could correctly answer.
  • Unipass ID: Allow financial professionals to verify their ID using Unipass.
Woman reading secure message on her smart phone in kitchen

Free Recipient Sends

Share the power
to email securely

Pass your recipients a send or few

It’s not enough to protect information one way only. Make it easy for clients to reply securely to all your messages, plus give them some free send credits in case they need to deliver sensitive information to others.

couple receiving encrypted email and replying securely


Regulatory guidance

Do right by clients and data regulators.


“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

ISO 27001

“You should use encrypted communication channels when transmitting personal data. You should use encryption and ensure that your encryption solution meets current standards.”
ICO, 2021


I just think about
it as being email.

It hasn’t changed the way we work. Email is how most of our clients want to communicate and Mailock acts as a second pair of eyes.

 Sam Whybrow  Director, Thanks Wealth Planning
Professional man on phone and laptop in office


Secure your emails
without switching

Connect your email and start securing messages and attachments with a click with Mailock Pro - secure email for business.



Compose secure emails from Windows Outlook or our secure web app. Write your message, add attachments, then set your challenge.


Your emails and attachments are secured with end-to-end AES-256 encryption - the NSA standard for "top secret" classified information.



Verify untrusted contacts using a range of multi-factor authentication challenges including question-and-answer, SMS, and Unipass ID.



Every recipient interaction is recorded, including opens, downloads, and revoke calls. Read receipts help you to follow up at the right time.


Revoke secure emails sent in error, even if they've already been opened - recipients will lose access to retrieve them immediately.


Recipients can send and reply to messages for free, using our secure web app. Grow your network by empowering clients to respond.

How it works


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.

Enter the code to unlock your secure email

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
Enter the code to unlock your secure email
Secure read pane in Mailock web app

Download the Mailock
Pro Data Sheet

People in meeting around office table with laptops discussing potential savings from secure email

Increase efficiency

Save time spent sending sensitive information back and forth between colleagues, partners, and clients. Speed is key to a positive customer experience according to PWC reports.

Woman giving talk on sustainability in the office to professionals

Save paper

Let’s reach Net Zero goals together. Reduce your paper document output by taking your sensitive document exchanges digital. Save carbon and do it with bottom line impact.

Man with face in hands after sending email to the wrong person

Protect data

Free your business from open-risk email. Protect messages and files from cyber threat and human error. Exchange documents with customers and keep data safe in line with GDPR.

man helping colleague to use secure email system

Free trial

Try Mailock Pro

Take advantage of unlimited secure email sends and all premium Pro features.

Case studies

  Hear from our users

3 min read
Thanks wealth planning reviewing email security
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
IT team managing secure email software integration
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?

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.