Retarus E-Mail Security
Email software
Intelligent email protection software
Email security software
- Features
- Ease of use
- Ease of management
- Quality of support
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- Market presence
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What is Retarus E-Mail Security
Retarus E-Mail Security is a cloud-based email security gateway that filters inbound and outbound email to reduce phishing, malware, spam, and data leakage risks. It is typically used by IT and security teams to protect corporate mail systems, including deployments alongside Microsoft 365 or other email platforms. The service emphasizes policy-based controls, encryption options, and continuity features that can sit in front of existing mail infrastructure rather than replacing it.
Gateway deployment flexibility
The product operates as an email security layer in front of existing mail systems, which supports organizations that want to keep their current email platform. This approach can simplify adoption compared with switching full email suites. It also fits hybrid environments where different business units use different mail backends.
Broad inbound and outbound controls
Retarus E-Mail Security covers common gateway functions such as anti-spam, anti-malware, and phishing protection, and it also supports outbound policy enforcement use cases. Outbound controls are relevant for reducing accidental data exposure and enforcing message handling rules. This makes it suitable for organizations that need both threat filtering and governance-oriented email policies.
Encryption and secure delivery options
The service includes mechanisms to protect message content in transit and at delivery, supporting secure communication with external recipients. This is useful for regulated or privacy-sensitive workflows where standard email transport is insufficient. It can reduce reliance on separate point tools for encrypted email delivery.
Not a full email suite
Retarus E-Mail Security focuses on protection and policy enforcement rather than providing mailboxes, calendars, or team collaboration. Organizations still need an underlying email platform and identity stack. Buyers comparing it to integrated productivity suites may need to plan for additional administration across systems.
Integration and routing complexity
As a gateway, it typically requires DNS/MX changes, connector configuration, and careful mail flow routing for inbound and outbound traffic. Misconfiguration can affect deliverability or cause mail loops, especially in hybrid or multi-tenant environments. Implementation often benefits from experienced email administrators.
Advanced tuning may be required
Email security effectiveness often depends on policy tuning, allow/deny lists, and ongoing review of quarantines and false positives. Organizations with limited security operations capacity may find ongoing maintenance burdensome. This is particularly relevant when enforcing strict outbound content rules or encryption policies.
Seller details
Retarus GmbH
Munich, Germany
1992
Private
https://www.retarus.com/
https://x.com/retarus
https://www.linkedin.com/company/retarus/
