Delta Chat<p>Some people in <a href="https://chaos.social/tags/Iran" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Iran</span></a> successfully use delta with national email providers when outside Internet is cut. </p><p><a href="https://chaos.social/tags/deltachat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>deltachat</span></a> designs are <a href="https://chaos.social/tags/OfflineFirst" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OfflineFirst</span></a> using delay tolerant protocols. Messages are queued when a path is blocked. email servers are made for this and run at planetary scale.<br>Messages crossing the border may arrive three days later but they arrive. </p><p>Peoples can stay in private touch across time and space, to the extent possible in current breakdown times. Which is what delta is about.</p>