Dein Tutor is a German-language newsletter about email deliverability, spam filtering and self-hosted mail infrastructure. Issues cover handling spam false positives, bounce management for newsletters, and open-source sending platforms like Postal.
Website: https://tutor.safeserver.de/
A Polish newsletter by an AI and automation agency owner who documents practical experiments run on his own company's servers, email filters and small hockey shop. Each issue walks through a concrete problem, the numbers from a real run, and where the approach failed.
Frank Louwers writes a personal tech blog about running AI agents on his own mail and workflows, with a focus on cloud, security and digital legacy. Readers get practical design reasoning, such as why an agent should be unable to send mail rather than being told not to, plus hands-on Linux and DNS notes.
A solo founder's blog about building and running EmailEngine, a commercial email API for developers, including revenue figures, release cadence and lessons from open source. It also covers how he uses AI tools for coding and documentation.
A communications consultancy's newsletter that uses cultural, political and media examples to discuss communications strategy, misinformation and effective messaging. Readers get opinionated, witty commentary on how communicators can write and persuade better.
One short email a week with hand-picked newsletters from the index. Free, no spam, unsubscribe anytime.
