clearswift ruag logoToday’s ever-morphing malware, the resurgence of ransomware and the increase of phishing spam demands a new level of email security. Clearswift's SECURE Email Gateway offers the industry’s most effective layer of real-time signature-less inspection to detect and completely sanitize evasive threats, delivering highly secure email without delay, whether it's on-premise or in the cloud e.g. Office 365.

Advanced Threat Protection

Protect against zero-hour threats evading anti-virus (AV) and sandboxing analysis with the industry’s deepest level of inspection. Unparalleled recursive decomposition and true file detection completely dissembles emails into its constituents parts, ensuring removal of weaponized scripts and payloads without delaying email delivery and false positives.

Anti-spam and Phishing

Prevent spam and phishing emails initiating an attack, while drastically reducing the amount of time users spend managing their inboxes. Clearswift’s multi-layer defense leverages IP reputations, greylisting, signatures, SPF, RBL, recipient authentication, and machine learning engines to provide > than 99.9% detection rates. DKIM support and an Outlook Spam Reporter crowdsources spam monitoring, registering and elimination.

Bi-directional Virus and Anti-malware Scanning

Stops known and unknown malware infection entering or leaving the network utilizing Cloud-based lookups and heuristics to supplement traditional signature downloads delivering superior virus protection. Choice of up to 3 AV engines (Avira, Sophos and / or Kaspersky).

Email Attachment Sanitization

Ensure all emailed attachments that leave your organization are completely redacted and sanitized. Automated removal of hidden metadata (author, username, server names, etc.), comments and revision history prevents the leak of sensitive data and information harvesting used for targeted phishing attacks. Sanitize your images using the Clearswift Anti-Steganography feature to ensure that no-one is trying to exfiltrate data using these files formats.

Email Encryption

With TLS as standard, and cost options to provide either S/MIME, PGP and password protected files or Web portal-based encryption, the Clearswift SECURE Email Gateway offers a variety of options to cater for customer requirements. Whichever you choose, the Gateway allows sensitive data to be delivered securely, in seconds, using the optimal format for the recipient.

Optical Character Recognition (OCR): DLP for images

Optical Character Recognition (OCR) is the process of detecting and extracting text from an image file, an image embedded within an electronic document, or a scan of a document. All Clearswift email security products have OCR functionality built-in to mitigate the risk of data loss through images shared through email. The OCR feature supports multiple languages, enabling it to be easily used by global organizations who operate using more than one language.

Adaptive Data Loss Prevention (A-DLP) for Email

Protect critical information with the industry’s game-changing Adaptive DLP technology for email. Block, encrypt or uniquely redact only the sensitive information that breaks policy while allowing the rest of the email to continue without disruptive quarantines or false positives. Optimized for data privacy and regulatory compliance (PCI, HIPAA, GDPR, etc.)



The Clearswift SECURE Exchange Gateway ensures that internal email correspondence on your Exchange 2010, 2013 or 2016 deployments matches the confidentiality and compliance policies of your organization. Messages that contain certain violations can be quarantined for manual inspection, or the offending content can be removed through the use of Adaptive Redaction. With critical information protection starting within the organization, malicious and or accidental data leakage is further mitigated.


ARgon works as an adaptive security add-on for existing gateways and it can be used in environments with no DLP solution or to augment an existing one. In both cases, ARgon removes confidential information from both inbound and outbound email. For those with an existing DLP solution, ARgon reduces the false positives by automatically removing the content which would cause the DLP solution to ‘stop & block’ the communication.

Active Care Support Service Overview

Health Check

We proactively perform periodic health checks in your environment

Virtual Replication

We replicate your environment for troubleshooting and reviewing changes

Remote Support

Our engineers connect remotely to your system for immediate support

Support engineer

You have your own personal support engineer

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