name                         mail transfer agent                           mail storage type                              imap server              imap shared                         calendar format                                    calendar shared               im server                       webdav  web ui  contacts shared                          files shared  web admin ui
0                          axigen              smtp proprietary rfc compliant                 proprietary indexed storage                proprietary rfc compliant                      yes                                    ical         available from microsoft outlook & webmail                      no                           no     yes              yes                                    no           yes
1                          bynari                                smtp postfix                                        imap                               cyrus imap                      yes                                    ical                                               ical                  jabber                          yes     yes              yes                                   yes           yes
2                    citadel / ux                                      custom                                 berkeley db                                   custom                      yes                                    ical                                                yes                     yes  groupdav and webcal support     yes              yes                       various methods           yes
3                        collaber                                          no                                          no                                       no                       no                                      no                                                yes                     yes                           no      no              yes                                   yes            no
4                      collabtive                             sendmail , smtp            imap server dependent , database                          any imap server                  unknown                                    ical                                      web interface                     yes                           no     yes              yes                                   yes           yes
5                  expresso livre                                     postfix                       imap server dependent                 cyrus or any imap server                       no                                    ical                                                yes                     yes                           no     yes              yes                                    no           yes
6                  group - office                              custom postfix                       imap server dependent                                   custom                      yes                                    ical                                      web interface                      no                          yes     yes              yes                                   yes           yes
7                           horde                             sendmail , smtp                                          no                           cyrus , others                       no                                      no                                   db , ical export                      no                          yes     yes              yes                                   yes           yes
8                       i - sense                             sendmail , smtp            imap server dependent , database                          any imap server                  unknown                                    ical  ical and custom export / synchronisation services                      no                           no     yes              yes                                   yes           yes
9                      jumper 2.0                                          no                                          no                                   custom                       no                              sql , ical                                               ical                      no                          yes     yes              yes  shares any content , media , or data           yes
10                          kolab                                     postfix          imap (kolab - xml format) and ldap         cyrus and (experimental) dovecot                      yes             ical and kolab - xml format                    imap , ical - and html - export                      no                           no   horde    imap and ldap                                    no           yes
11                 open - xchange                                     postfix                       imap server dependent                 cyrus or any imap server                      yes                                    ical                              ldap , export to ical                      no                          yes     yes              yes                                   yes  if purchased
12  feng office community edition                             sendmail , smtp                     database or file system                          any imap server                       no                              sql , ical                                               ical                      no                           no     yes              yes                                   yes           yes
13                  opengroupware                                     postfix                                    mail dir                                    cyrus                       no                                      no                                     export to ical     xmpp , if purchased                           no      no               no                                    no  if purchased
14                   phpgroupware                                          no                                          no                                       no                  unknown                                 unknown                                               ical                     yes                      unknown     yes          unknown                                   yes           yes
15                        qontext                                       n / a                                       n / a                                    n / a                    n / a                                      no                                                 no                      no                           no     yes              yes                                   yes           yes
16               simple groupware                                        smtp            imap server dependent , database  cyrus , courier imap , uw imap , others                      yes               sql , ical and xml format                    database , ical import / export  built - in chat module              planned for 0.3     yes              yes                                   yes           yes
17            synovel collabsuite                                     postfix                                     maildir                                  dovecot                      yes                                    ical                                             caldav                    xmpp                        n / a     yes              yes                                    no           yes
18            teamwork (software)                     relies on existing smtp                   synchronizes with clients                                       no                      yes                                    ical                                               ical                      no                           no     yes              yes                                   yes           yes
19               tonido workspace                                          no                                          no                                       no                       no        synchronizing , web based access                             built - in chat module                     yes                          yes     yes              yes                                   yes           yes
20                       tine 2.0            postfix or any other smtp server                                         sql            dbmail or other imap - server   if imap server support                                     sql                             not yet caldav or ical                      no                           no     yes              yes                                    no           yes
21                          wrike                                          no                                          no                                       no                       no                                    ical                                                yes                      no                          yes     yes              yes                                   yes           yes
22                         zarafa  postfix , exim , qmail , sendmail , others  mysql , optional attachments on filesystem                                      yes  public folder available  outlook , webaccess , ical , z - merge                    outlook , webaccess , z - merge                      no                           no     yes              yes                                    no           yes
23                         zimbra                              custom postfix                       mail dir w / index db                                   custom                       no                                    ical                                               ical         (removed in v8)                          yes     yes              yes                                   yes           yes
24                           name                         mail transfer agent                           mail storage type                              imap server              imap shared                         calendar format                                    calendar shared               im server                       webdav  web ui  contacts shared                          files shared  web admin ui

Table as JSON:
{"name":{"0":"axigen","1":"bynari","2":"citadel \/ ux","3":"collaber","4":"collabtive","5":"expresso livre","6":"group - office","7":"horde","8":"i - sense","9":"jumper 2.0","10":"kolab","11":"open - xchange","12":"feng office community edition","13":"opengroupware","14":"phpgroupware","15":"qontext","16":"simple groupware","17":"synovel collabsuite","18":"teamwork (software)","19":"tonido workspace","20":"tine 2.0","21":"wrike","22":"zarafa","23":"zimbra","24":"name"},"mail transfer agent":{"0":"smtp proprietary rfc compliant","1":"smtp postfix","2":"custom","3":"no","4":"sendmail , smtp","5":"postfix","6":"custom postfix","7":"sendmail , smtp","8":"sendmail , smtp","9":"no","10":"postfix","11":"postfix","12":"sendmail , smtp","13":"postfix","14":"no","15":"n \/ a","16":"smtp","17":"postfix","18":"relies on existing smtp","19":"no","20":"postfix or any other smtp server","21":"no","22":"postfix , exim , qmail , sendmail , others","23":"custom postfix","24":"mail transfer agent"},"mail storage type":{"0":"proprietary indexed storage","1":"imap","2":"berkeley db","3":"no","4":"imap server dependent , database","5":"imap server dependent","6":"imap server dependent","7":"no","8":"imap server dependent , database","9":"no","10":"imap (kolab - xml format) and ldap","11":"imap server dependent","12":"database or file system","13":"mail dir","14":"no","15":"n \/ a","16":"imap server dependent , database","17":"maildir","18":"synchronizes with clients","19":"no","20":"sql","21":"no","22":"mysql , optional attachments on filesystem","23":"mail dir w \/ index db","24":"mail storage type"},"imap server":{"0":"proprietary rfc compliant","1":"cyrus imap","2":"custom","3":"no","4":"any imap server","5":"cyrus or any imap server","6":"custom","7":"cyrus , others","8":"any imap server","9":"custom","10":"cyrus and (experimental) dovecot","11":"cyrus or any imap server","12":"any imap server","13":"cyrus","14":"no","15":"n \/ a","16":"cyrus , courier imap , uw imap , others","17":"dovecot","18":"no","19":"no","20":"dbmail or other imap - server","21":"no","22":"yes","23":"custom","24":"imap server"},"imap shared":{"0":"yes","1":"yes","2":"yes","3":"no","4":"unknown","5":"no","6":"yes","7":"no","8":"unknown","9":"no","10":"yes","11":"yes","12":"no","13":"no","14":"unknown","15":"n \/ a","16":"yes","17":"yes","18":"yes","19":"no","20":"if imap server support","21":"no","22":"public folder available","23":"no","24":"imap shared"},"calendar format":{"0":"ical","1":"ical","2":"ical","3":"no","4":"ical","5":"ical","6":"ical","7":"no","8":"ical","9":"sql , ical","10":"ical and kolab - 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in chat module","17":"xmpp","18":"no","19":"yes","20":"no","21":"no","22":"no","23":"(removed in v8)","24":"im server"},"webdav":{"0":"no","1":"yes","2":"groupdav and webcal support","3":"no","4":"no","5":"no","6":"yes","7":"yes","8":"no","9":"yes","10":"no","11":"yes","12":"no","13":"no","14":"unknown","15":"no","16":"planned for 0.3","17":"n \/ a","18":"no","19":"yes","20":"no","21":"yes","22":"no","23":"yes","24":"webdav"},"web ui":{"0":"yes","1":"yes","2":"yes","3":"no","4":"yes","5":"yes","6":"yes","7":"yes","8":"yes","9":"yes","10":"horde","11":"yes","12":"yes","13":"no","14":"yes","15":"yes","16":"yes","17":"yes","18":"yes","19":"yes","20":"yes","21":"yes","22":"yes","23":"yes","24":"web ui"},"contacts shared":{"0":"yes","1":"yes","2":"yes","3":"yes","4":"yes","5":"yes","6":"yes","7":"yes","8":"yes","9":"yes","10":"imap and ldap","11":"yes","12":"yes","13":"no","14":"unknown","15":"yes","16":"yes","17":"yes","18":"yes","19":"yes","20":"yes","21":"yes","22":"yes","23":"yes","24":"contacts shared"},"files shared":{"0":"no","1":"yes","2":"various methods","3":"yes","4":"yes","5":"no","6":"yes","7":"yes","8":"yes","9":"shares any content , media , or data","10":"no","11":"yes","12":"yes","13":"no","14":"yes","15":"yes","16":"yes","17":"no","18":"yes","19":"yes","20":"no","21":"yes","22":"no","23":"yes","24":"files shared"},"web admin ui":{"0":"yes","1":"yes","2":"yes","3":"no","4":"yes","5":"yes","6":"yes","7":"yes","8":"yes","9":"yes","10":"yes","11":"if purchased","12":"yes","13":"if purchased","14":"yes","15":"yes","16":"yes","17":"yes","18":"yes","19":"yes","20":"yes","21":"yes","22":"yes","23":"yes","24":"web admin ui"}}