MessageLabs Hosted Email Boundary Encryption Service


MessageLabs hosted Email Boundary Encryption service uses TLS encrypted tunnels to establish secure end-to- end encryption between your mail server and your partners’ or clients’ mail servers, preserving confidentiality of all content contained within email communications. Every email sent or received via this channel securely encrypted, but the application of encryption remains totally transparent to both sender and receiver.

MessageLabs Boundary Encryption service is interoperable with market-leading mail servers, including Microsoft Exchange, Lotus Domino and Sendmail.

Why use our Email Boundary Encryption service?

Data contained in emails can be intercepted and then read, deleted or altered before it reaches the intended destination. Our Email Boundary Encryption service provides a cost-effective, affordable method of preserving the integrity of email communications. It requires minimal in-house management and avoids the need to invest in complicated in-house hardware or software.

Your challenge: MessageLabs Hosted Email Boundary Encryption Service: Results:
Secure email communications between your organisation and your partners or clients Harnesses Transport Layer Security (TLS) to encrypt the email connection between sender and recipient network boundaries, not just the email content       Secures email passing between sender and recipient networks, facilitates compliance with privacy and other regulations
Configured to not send the message if a secure connection cannot be established
Email Messaging Security Works seamlessly alongside all other email security services provided by MessageLabs including: Email Anti-Virus, Anti-Spam, Content Control and Image Control Enables you to meet all of your email messaging security needs with one provider


As with all MessageLabs products, our hosted Email Boundary Encryption service includes 24x7x365 support.

How Email Boundary Encryption Works

Boundary Encryption Information Exchange



  • You designate the mail domains to be encrypted and identify the organisations you wish to exchange encrypted emails with

  • A secure, private email network is established, incorporating TLS encrypted tunnels

  • If a secure TLS connection cannot be established end-to-end, the email is not delivered and the sender is notified.

  • MessageLabs Boundary Encryption service preserves the integrity of email communications and manages all authentication certificates

Pricing- Boundary Encryption Service

The MessageLabs Boundary Encryption Service is based on a per member, per month subscription.

You simply pay a fixed monthly cost based on the number of members connected. Each service can be purchased separately or you can bundle multiple services to provide complete security protection.

All pricing quotes are individually tailored for each client’s specific requirements and MessageLabs offers discounts for both scale and multiple services.

NEXT STEPS- Email Boundary Encryption Service

To implement our Boundary Encryption Service you must already be using or initially purchase our Email Anti-Spam or Email Anti-Virus service. Our Encryption service can then be activated based on a flat yearly fee.

Contact our sales team today to find out more information about our Boundary Encryption or Policy Based Encryption Service.

Next Steps

dotted border