Note the comments of this channel...
Please help the developers by reporting any problems to the Bug Tracker first, not here.
This forum is not for discussion/support on breakages with Alpha.
Mail is at /webmail (I just tested)
This is Alpha code and subject to breaking changes.
Update frequently and track bugs carefully.
Particularly the recent maria db update that may trash your install.
Several on webmail too. Likely you are just not up to date.
https://forums.koozali.org/index.php/topic,54724.0.htmlYou can DM me for a Rocket account if you want to help test. Much easier to track the action there.
Thanks.