Email Security

  • Why True Email Security Requires a Multi-Vendor Approach

    Why True Email Security Requires a Multi-Vendor Approach

    Managers in charge of ensuring security at enterprises face constantly changing, ever evolving email-based attacks. Conventional safeguarding mechanisms and rigid data sources soon come up against their limits. Companies need solutions which continuously adapt to meet new threats without requiring enterprises to continually restructure their own infrastructures or change providers.

    Read more
  • Nothing to Hide: New Observability Metrics for Retarus Email Security

    Nothing to Hide: New Observability Metrics for Retarus Email Security

    At Retarus, transparency is not a marketing claim – it is a core design principle. With the introduction of our new Observability Metrics, we are taking the next logical step, delivering a level of visibility that is currently unique in the market. Effective immediately, customers gain full, unfiltered, real-time access to all security-relevant data generated…

    Read more
  • Seemingly harmless DKIM option emerges as security risk

    Seemingly harmless DKIM option emerges as security risk

    In discussions with the security teams of many of our enterprise customers, Retarus’ experts often encounter a commonly overlooked risk. The issue is that some email security solutions activate the DKIM “l=” tag (length tag) by default. While this option indeed made sense in the past, it now poses significant security risks.

    Read more
  • Christmas Season in Companies: 5 Tips for Better Email Security

    Christmas Season in Companies: 5 Tips for Better Email Security

    The run-up to Christmas is the most wonderful time of the year for many people – unfortunately, it is for cybercriminals as well. While companies focus on closing the fiscal year and employees are busy with vacation planning and gift shopping, attackers prepare targeted campaigns. Sören Schulte, email security specialist at Retarus, explains what IT…

    Read more
  • New partnership: Retarus joins forces with DMARC Advisor

    New partnership: Retarus joins forces with DMARC Advisor

    Especially in Europe, companies are increasingly faced with the challenge of ensuring their communications infrastructures remain independent, transparent, and trustworthy. For quite some time now, DMARC (short for Domain-based Message Authentication, Reporting & Conformance) has become well established as a key standard for protecting sender identities and enabling the verification of email communications. Retarus and…

    Read more
  • Better overview, faster support: “Quarantine Release” in myEAS

    Better overview, faster support: “Quarantine Release” in myEAS

    Dealing with blocked messages contributes to the daily workload of every email security admin. With the new Quarantine Release feature included in Retarus’ myEAS admin portal, helpdesk teams are now able to resolve these types of requests within seconds. Highly precise search and filtering options simplify the work, while also ensuring transparency and the speedy…

    Read more
  • Bogus emails from “former employees” pose growing cyber threat

    Bogus emails from “former employees” pose growing cyber threat

    Our email security experts have detected a rise in a sophisticated social engineering variant targeting companies, particularly their HR or payroll teams, with a scam that is difficult to detect at first glance.

    Read more
  • Meet Retarus at it-sa 2025

    Meet Retarus at it-sa 2025

    From October 7 to 9, 2025, IT experts and decision-makers will once again gather at it-sa, Europe’s leading trade fair for IT security. Visit us at the Nuremberg Exhibition Center and discover our modular email security solution – developed and hosted in Europe.

    Read more
  • flatexDEGIRO secures email communication using Retarus

    flatexDEGIRO secures email communication using Retarus

    flatexDEGIRO AG uses Retarus Email Security to protect its employees’ email inboxes. The online brokerage also employs role-based S/MIME encryption for messages subject to regulatory requirements.

    Read more