[horde] Horder User Preferences are deleted

[Thierry Lavallée]

Hi,
Server maintenance often RESET all horde user preferences to default
(their signature and other account display preferences).

We are wondering where those are stored, why they are deleted and how
should we manage to keep them safe.

thanks!
-- 
Thierry Lavallée
http://www.8p-design.com/en/internet.php
Internet Business Solutions in Montreal