[sureglymop]

Isn't their upcoming "Thundermail" service actually based on/using Stalwart?

Here is a quote I found on https://thunderbird.topicbox.com/groups/planning/T437cd854af...:

> We have been experimenting with this for a while now and are using Stalwart as the software stack we are building upon. We have been working with the Stalwart maintainer to improve its capabilities (for instance, we have pushed hard on calendar and contacts being a core piece of the stack).

However, unfortunately I am unsure whether this is a good source or official page.