Internet fragmentation is real in many countries and regions today but did you know that this "Sometimes-Internet" was the reality of the 1980ties when #email evolved? #chatmail relays are cheap, secure, fast, ephemeral and resilient server setups for the growing Sometimes-Internet, using cryptography for planetary-scale interop: - E2EE-only, strict TLS+DKIM - no spam-check magic - delay/cut-off tolerant - messages removed after download - addresses removed if stale - push notifications

#DeltaChat evolved according to needs of people under repression and continues to do so. The more ignorant and exchangeable we make #chatmail relays, the less their operators have to worry. Having metadata-less, fast and cheap instant messaging relays, that can also operate when 99% of the Internet vanishes in a region, is a key goal. Some way to go still but, already now, is there any other real-world solution that provides better service in internet-repressed regions in 2025?