php-horde-kolab-storage 2.1.0-1 (amd64 binary) in ubuntu vivid

 Storing user data in an IMAP account belonging to the user is one of the
 Kolab server core concepts. This package provides all the necessary means
 to deal with this type of data storage effectively.
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 This package is part of Horde, a web application Framework written in PHP with
 modules like IMP (webmail), Turba (contacts), Kronolith (calendar), Nag (task
 list), Gollem (file manager), etc.