for Exchange software, which is compatible with Microsoft Exchange Server Active Sync and Direct Push, allowing the Nokia smartphones to receive push email as well as sync contact lists, calendars, and tasks with Exchange servers. Global Address Lookup is also supported, starting with version 2 of the Mail for Exchange software. Nokia Messaging Nokia Messaging Email is a push email service and client application that supports most of the popular email providers like Windows Live Hotmail, Yahoo! Mail, Gmail and many more. Nokia Messaging servers aggregate messages from up to ten accounts on and pushes them to compliant devices (Nokia S60 and some S40, plus Maemo-based devices like the N900). As of August 2012 Nokia Messaging Email is in the process of being phased out. Palm OS Palm Smartphone devices have had IMAP IDLE available through the use of 3rd Party software ChatterEmail as early as 2004. There is no additional server software required. Palm webOS The Palm Pre webOS has push email for Gmail, IMAP, and Exchange accounts. BlackBerry BlackBerry uses wireless mail user agent devices and a BlackBerry Enterprise Server (BES) attached to a traditional email system. The BES monitors the email server, and when it sees new email for a BlackBerry user, it retrieves (pulls) a copy and then pushes it to the BlackBerry handheld device over the wireless network. BlackBerry became very popular, in part because it offers remote users "instant" email; new emails appear on the device as soon as they arrive, without the need for any user intervention. The handheld becomes a mobile, dynamically updating, copy of the user's mailbox. As a result of the success of BlackBerry, other manufacturers have developed push email systems for other handheld devices, such as Symbian- and Windows Mobile-based mobile phones. However, they only support push email for some email services. With the release of the BlackBerry 10 operating system for its new generation of mobile device, BES is no longer available for non-corporate client email delivery. Instead, BlackBerry 10 offers POP, IMAP, or ActiveSync for transferring email to and from a device. Of these, the latter two can provide push email delivery if the server supports it. Data compression is also not provided anymore. Sony Ericsson Sony Ericsson Smartphones (M600, P990, W950, P1, W960, W995, G900, G700) as well as some Cybershot phones (K790, K800, K810, K850, C510, C905, J105i) feature push email using IMAP IDLE or