Comment on Ask HN: What could disrupt email?parentComments−mshenfield9yZulip and Mattermost are alternatives that can be hosted (they're both open source software).[0] https://about.mattermost.com/ [1] https://zulip.org/server.html
Comments
Zulip and Mattermost are alternatives that can be hosted (they're both open source software).
[0] https://about.mattermost.com/ [1] https://zulip.org/server.html