What IMAP sharing options exist for software with a web UI?
CREATE TABLE "comparison" (
  "name" text,
  "mail_transfer_agent" text,
  "mail_storage_type" text,
  "imap_server" text,
  "imap_shared" text,
  "calendar_format" text,
  "calendar_shared" text,
  "im_server" text,
  "web_dav" text,
  "web_ui" text,
  "contacts_shared" text,
  "files_shared" text,
  "web_admin_ui" text
);
SELECT "imap_shared" FROM "comparison" WHERE "web_ui"='web ui';