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How does the SECURE Email Gateway work

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.

Content security

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.

Data Loss Prevention

To prevent data leaks and damage to reputation, the Clearswift SECURE Email Gateway checks message content for compliance with your organisations 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).

Clearswift TRUSTmanager

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.

Flexible Richtlinienerstellung

Default policies will filter and quarantine messages from senders with bad or suspicious reputations without impeding emails from those with neutral or good reputations.

Personal Message Manager

Users can be sent scheduled summary messages, enabling them to review and, if appropriate, release filtered messages.

The 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.

Zero-Hour Malware Protection

Clearswift's ThreatLab Live technology, designed to keep watch for new malware threats.

Last change: 10.06.2022, Product of Interest: