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Retarus Press Release

Retarus enhances its Secure Email Platform with new outbound features

Comprehensive service to safeguard outbound emails and protect companies from data abuse, loss of data, and reputational damage

Munich, 15.09.2023 // The range of functions provided by the Retarus Secure Email Platform has been expanded to now offer additional control and security when sending out emails. These tools effectively prevent the transmission of outbound spam and phishing mails, while also enabling the limiting of the number of recipients as well as the size of attached files.

Cyber criminals often use compromised email accounts to hijack company names and domains, misusing them to send out spam and phishing messages. To prevent this, the Outbound AntiSpam Detection and Outbound Phishing Filter check outbound messages for spam content and malicious links. Any outbound message classified accordingly is then either rejected or automatically deleted, depending on the user-configured settings. This ensures that no phishing or spam messages are sent out to business partners or customers by way of their email domain, effectively protecting the reputation of the company.

Through their new feature Outbound Recipient Restriction, Retarus additionally gives companies the opportunity to limit the maximum number of recipients for an outbound email. Using Outbound Size Restriction, the maximum size of attachments can also be restricted, for instance to curb file-sharing via email – thus minimizing the risk of data leakage or disclosure of business information.

All-around security concept for outbound emails

The new features AntiSpam Detection, Phishing Filter, Recipient Restriction, and Size Restriction round out the outbound functions, complementing the existing Attachment Blocker and Sender Restriction tools. With this wide range of functions, Retarus offers a comprehensive scheme for securing outbound emails effectively. The Retarus Secure Email Platform not only provides powerful protection when receiving emails, but also significant assistance in protecting confidential information and safeguarding the company’s reputation when sending emails out. This is especially beneficial for franchisors and other organizations at which large numbers of users are sending messages from multiple locations.

About Retarus

Retarus is a global provider of cloud solutions, modernizing and securing the digital communications and data exchange of organizations and public authorities. Key products are digital Cloud Fax, SMS, Transactional Email, Email Security, Supply Chain Integration, and Intelligent Document Processing. Retarus operates globally distributed data centers, providing these solutions with top performance, security, and data protection. Headquartered in Munich and founded in 1992, Retarus is privately owned and proud of its innovative strength. The company employs around 500 people in 20 locations on four continents. Nearly half of the companies listed in the S&P Global 100 already place their trust in Retarus and, along with leading analysts, confirm the outstanding quality and reliability of its services. Retarus generates around 40 percent of its revenue in the US and offers its products both directly and in close cooperation with selected partners. More information:

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retarus GmbH
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