This package provides mail push functionality using the IMAP IDLE command to generate push events when new mail arrives.
Please check /opt/open-xchange/etc/groupware/push_imapidle.properties for settings, although there's currently no need to change anything except debugging.

Note: This is a new feature and is currently in an experimental state. It has been tested with courier-imap, dovecot and cyrus imapd.

See http://oxpedia.org/wiki/index.php?title=MailPushIMAPIDLE_Bundle for further details.