Modern business simply couldn’t function without email. However, both
incoming and outgoing messages can pose significant risks to the security of
company networks and confidentiality. It is therefore vital that an
organisation’s email gateway is able to mitigate spam, neutralise viruses and
prevent data leaks without hindering the free flow of messages.
The Clearswift SECURE Email Gateway is a trusted email gateway security
solution that gets the balance right.
Built on MIMEsweeper, Clearswift’s celebrated content-inspection and
filtering technology, the Clearswift SECURE Email Gateway is a highly effective
and resilient email gateway for 50 to 50,000 users. With the Clearswift SECURE
Email Gateway installed, your organisation can be confident that it is protected
from digital threats and data leaks while employees communicate freely by
email.
Reliable, resilient, responsive
The Clearswift SECURE Email Gateway’s powerful content-inspection engine is
twinned with an easy-to-use policy centre to assist with development of
effective email-use policies. Ready-made template policies ensure that the
Clearswift SECURE Email Gateway is fit to perform from the moment it is
deployed.
Creating new policies, or modifying policy templates, is a quick and
straightforward process. The rules can be tailored at user level to better
manage how email messages are shared, stored and distributed. To ensure
consistency and save time on administration, policies are linked to directory
servers and update transparently across multiple and SECURE Email Gateway
installations.
Integrated Email Encryption
The Clearswift SECURE Email Gateway can also be used to send and receive
encrypted email in a number of different industry standard formats, namely
S/MIME, PGP and also using an ad-hoc method of password protection.
Encrypted messages can be decrypted and then passed to the content inspection
engine to ensure no information is leaking out inadvertently. Flexible
policies for email encryption permit messages to be encrypted by direction or by
content.
Content inspection and malware protection
The Clearswift SECURE Email Gateway is equipped with the most capable
content-hygiene tools. Bidirectional anti-virus and anti-malware protection is
built in. This means both inbound and outgoing emails are checked for viruses
and other malware.
The content of both message bodies and attachments are scanned. Deep scanning
of message attachments means that the content of compressed files is examined,
too. File identification is based on binary signatures, rather file names,
improving accuracy and ensuring that unrecognised file types are picked up.
To prevent data leaks and damage to reputation, the Clearswift SECURE Email
Gateway checks message content for compliance with your organisation’s policies.
This is supported by managed lists and editable terms and compliance
dictionaries. These include payment card industry (PCI) patterns, personally
identifiable information (PII), Gramm-Leach-Bliley Act (GLBA), Health Insurance
Portability and Accountability Act (HIPAA), Securities and Equities Commission
(SEC) and the Sarbanes-Oxley Act (SOX).
Unify your organisation’s internet security by deploying both Clearswift
SECURE Web Gateway and SECURE Email Gateway and benefit from considerable
administrative savings, thanks to these common content-inspection
technologies.

Smart Clearswift technologies
The Clearswift SECURE Email Gateway includes several unique Clearswift
technologies to fend off spam, ensure content cleanliness and to keep messages
moving freely.
Clearswift TRUSTmanager, a technology that checks sender reputations against
a constantly updated database provided by Clearswift removes 80% of spam before
it reaches the gateway saving significant bandwidth.
Clearswift SpamLogic a real-time spam-detection technology then identifies
and filters spam with an accuracy of 99.5%. It does this by examining the
message source, content and destination, as well scanning attachments.
Default policies will filter and quarantine messages from senders with bad or
suspicious reputations without impeding emails from those with neutral or good
reputations. Users can be sent scheduled summary messages, enabling them to
review and, if appropriate, release filtered messages. This ability to delegate
spam identification to users reduces administration and improves productivity.
As a further aid to efficiency, users can manage their own sender
whitelists.
Protection against malware is provided by the integrated Kaspersky Anti-virus
engine, a Zero hour anti-malware filter and backed by
Clearswift’s ThreatLab Live technology, designed to keep watch for new
malware threats.
Powerful reporting and management
The Clearswift SECURE Email Gateway includes powerful management and
reporting tools, including message-tracking and granular user level quarantine
controls. These are all accessed from the same, simple web-based interface.
Pre-defined reports are easily modified and can be executed across multiple
Clearswift SECURE Email Gateways for a consolidated view of user activity.
|
Feature |
Benefit |
SpamLogic™

|
Multi-engine anti-spam to provide at least 99.5%
spam detection including detection of spam outbreaks in real
time.
|
Active directory and LDAP integration

|
Policies are linked to directory servers to
ensure consistency and save time on administration.
|
Personal message manager/user quarantine

|
Clearswift SECURE Email Gateway can delegate spam
identification to users to reduce administration and improve
productivity.
|