Clearswift's products help organizations stay safe from threats that slip past legacy security controls and prevent against data loss.
From the Secure Email Gateway to our Secure Exchange Gateway, Clearswift's products are offered on-prem or in hybrid environments to complement Fortra's Advanced Email Security suite of cloud-based solutions.
Explore Our Email Security Products
Clearswift Secure Email Gateway
With its legacy in the MIMEsweeper for SMTP technology, the Clearswift SEG incorporates the latest in inbound threat protection (Avira and Sophos AV), a multi-layer spam defense mechanism, multiple encryption options, and advanced security features including DMARC/DKIM. The product has integrated DLP features such deep content inspection control on size and types of attachments, Adaptive Redaction, Optical Character Recognition (OCR), and Anti-Steganography features. The Clearswift SEG can be deployed on-premises, as a Hosted solution, to protect Cloud email, or as a Managed Service.
Clearswift Secure Exchange Gateway
The Clearswift Secure Exchange Gateway ensures that internal email correspondence on your Exchange 2013, 2016, or Microsoft 365 deployments match 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 using Adaptive Redaction. With critical information protection starting within the organization, malicious and or accidental data leakage is further mitigated. The Secure Exchange Gateway can be integrated with an existing email gateway and web gateway.
Unprecedented Email Protection

Adaptive Security

Automated Redaction and Sanitization

Anti-spam and Phishing

Mitigating Information Security Risks in Microsoft 365
Wrap an unprecedented layer of email security and sanitization around M365 to prevent targeted phishing attacks, embedded malware and the loss of confidential data that evades detection from Microsoft's basic security controls. Businesses can migrate their email with confidence knowing their security is strong enough for the cloud.
Product Features
Secure Archiving
Available in the Clearswift core email product family, Clearswift and Cryoserver offer a superior email archiving solution which captures emails in real time, the instant they are sent or received, and freezes them in a tamper-evident environment. Emails are fully indexed, encrypted and compressed into the archive. Due to the emails being indexed in real time, the embedded search engine can carry out lightning fast searches.
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 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.
Adaptive Redaction
Adaptive security is automatically applied in real-time based on specific regulatory or governance policy, whether it calls for redaction, encryption, blocking, moving or deleting. Clearswift's unique Adaptive Redaction technology removes the compliance burden on organizations by removing only the non-compliant information from being shared, allowing the rest of the information to continue without disruption and false positives. Compliance protection that goes unnoticed from the end user.
Advanced Threat Protection
While other security solutions scratch the surface of a document, in-real time Clearswift deconstructs files and messages down to their lowest parts for inspection — giving organizations a deeper level of inspection as well as remediation.
Email Security Toolkit
Learn more about Clearswift email security solutions with the Email Security Toolkit. Designed with resources for the information and methods needed to get the most out of your email security solutions.
Related Resources
Easy to Use. Flexible Deployments.
Recognized for its inuitive policy capbilities and distributed management reviews, Clearswift Email Security Solutions offer the deployment option that best meets your security needs - cloud, virtual or gateway appliance. Clearswift’s unevasive detection and sanitization can also provide the enterprise protection that business require for cloud email and webmail.