* https://yunohost.org/ (has email server, open source and free, GNU AGPL v.3)
* sandstorm.io which hinted at email server, but seems to be stalling
* http://cloudron.com/ which seems interesting but couldn't find much reviews
Yunohost covers the bill, but I'm surprised it has no tracktion on HN, no comments/reviews.
Are there alternatives I'm missing? What are your recommendations?
Background: Given how important email has become as authorization and how sometimes account access is hacked or revoked + how the email data usually stays with the provider I'd like to run my own server.