• European Champion for Email Security and Data Sovereignty: Under new leadership, SEPPmail bundles technology, partner network, and European data sovereignty

• Marcus Zeidler appointed new CEO of SEPPmail: Extensive IT channel and IT security experience as COO/CFO of ELOVADE

• Successful acquisition of Swiss Alinto business strengthens SEPPmail's position as market leader in email security

Karlsruhe/Neuenhof, May 6 2026 – SEPPmail, a leading provider of secure email communication solutions, is entering its next phase of growth with a new CEO. Effective April 15, 2026, Marcus Zeidler has assumed the position of Chief Executive Officer, succeeding founder Stefan Klein. Together with LEA Partners, a leading partner for B2B SaaS companies, SEPPmail will accelerate its growth trajectory and systematically expand its product portfolio around email security and data sovereignty.

Marcus Zeidler brings extensive experience in IT security, corporate development, and channel business. As CFO and COO of ELOVADE (formerly EBERTLANG), he was responsible for the company's strategic positioning and growth in recent years. Marcus Zeidler has already been supporting SEPPmail as a Senior Advisor and Advisory Board member.

Marcus Zeidler comments: “SEPPmail already enjoys an exceptional reputation in the channel and stands for the highest security standards and innovative strength in email encryption. I look forward to continuing the successful development of the company together with the team, advancing the portfolio in a targeted manner, and setting new impulses in the field of secure and sovereign communication. SEPPmail will continue to stand for secure digital communication – from Europe, for Europe.”

Founder and former CEO Stefan Klein will remain with the company in a leading role, continuing as Managing Director of the Swiss entity and supporting Marcus Zeidler with his valuable experience and expertise. "Over the past few months, I have already had the opportunity to work closely with Marcus, and I am confident that his experience, paired with a clear vision, will be decisive for the company's further development. The first step has already been successfully taken with the acquisition of the Swiss Alinto business," says Stefan Klein.

Kurt Weise, Partner at LEA Partners, comments: "In Marcus, we have gained a CEO who brings the vision and experience needed to develop SEPPmail into one of Europe's leading sovereign providers of email security. As LEA Partners, we will actively support this journey."