Market Analysis of the Radicati Group

Secure Email – Market Quadrant 2025

What can email security providers do today? What differentiates them from one another? Radicati has analyzed the key market players and presented the results in the “Market Quadrant.” This is essential reading for email, IT, security, and compliance professionals who must make informed decisions.

Why You Should Read Radicati’s 2025 Market Quadrant

Email is the most important communication channel in businesses. And therefore, a primary target for cybercriminals. Attack techniques are constantly evolving, and the IT landscapes that need protection are becoming more complex and, as a result, more vulnerable. In short, using the right email security solutions remains a top priority. For companies of all types and sizes.

Radicati Group, the leading analyst firm for email for decades, has examined the key providers of email security solutions. In the “Secure Email – Market Quadrant 2025,” you’ll learn where these providers stand in comparison, what exactly they can do, and where their strengths and weaknesses lie. Essential reading for decision-makers who prefer to stay well-informed.
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Organizations of all sizes continue to invest in highly sophisticated email security solutions, as email remains a key vector for malicious attacks and compromise. The worldwide revenue for Secure Email solutions is expected to grow from over $7.4 billion in 2025, to nearly $15.3 billion by 2029.

Source: Radicati Group, Inc. “Secure Email – Market Quadrant 2025”

Retarus is named a “Top Player” in Radicati’s “Secure Email – Market Quadrant 2025”

Radicati has rated Retarus as a “Top Player” in its latest report. “Top Players” are defined as “current market leaders with products that offer both broad and deep functionality and have a solid vision for the future.” Radicati highlights Retarus’ “attractive portfolio of email security features in an efficient cloud-based solution that meets the needs of customers of all sizes” as a particular strength. Especially relevant for “compliance-sensitive companies and industries”: Retarus’ email security solutions are “fully GDPR-compliant” and can, upon the customer’s request, “be operated exclusively in European data centers”.

About the Radicati Group

The Radicati Group is a leading market research firm specializing in the computer and telecommunications industry. Founded in 1993, the company covers all aspects of email, security, archiving, compliance, wireless technologies, web services, instant messaging, social networks, unified communications, voice over IP, and much more. Radicati’s reports are entirely self-funded, ensuring they are independent of any vendor influence.