About me

The person behind sxMail.

Hi, I'm Dennis Parsch - a full-time programmer and the person behind sxMail.

Since 2005 I've gathered experience in almost every major programming language. It all started with web development (PHP, JavaScript, HTML & CSS); Java, C++, C# and Delphi came later - some of them feel like a second native language to me.

Since my studies I've focused intensively on network security and advise companies in that field. sxMail is my passion project: an ad-free, data-minimal email service that I run and fund out of my own pocket.

More at dennis-parsch.de

What I do

Programming

Web apps and software in many languages - from the first idea to running in production.

Network security

Advising companies on secure systems, infrastructure and data protection.

Hosting & email

My own servers for web hosting and email - the foundation sxMail runs on too.

Under the hood

Technology explained openly

Want to know exactly what runs at sxMail, where your data lives and which components are involved? The technology page lists the complete stack, from the mail server to the AI, including the points that are still open.

To the technology page
How it all fits togetherAny other email programThunderbird, Outlook, phoneBrowser, desktop app, AndroidOur own hardware in Germanynginx and CaddyBackend (Node.js)mailcowIMAP, SMTP, calendar, contactsFilesWebDAV behind a gatewayAIvLLM, Parakeet, Omnivoice
How it all fits together