ActiveSync Feature Grid
++++The following is a chart showing the out of the box feature set of Horde_ActiveSync used in conjunction with the Horde Groupware stack compared to other groupware stacks supporting EAS.
<table class="horde-table">|| Feature || Horde 4/5 || Z-Push 1/2 || Tine 2.0 || Notes |||| Efficient memory use via use of temporary streams. || Yes, for reading/writing the WBXML data and for reading/writing MIME parts from IMAP server. || Yes, for reading/writing the WBXML data. || No ||  |||| Easily sync multiple collections at once. || Yes || No || Yes ||  |||| Fully extensible and useable outside of the groupware stack || Yes || No || Yes ||  |||| Support SOFTDELETE for keeping the client's database in sync with the client selected date filters. || H5 || No || No ||  |||| Choice of either SQL or NoSQL state storage. || Yes || No || No || As of Horde 5.2, the ActiveSync library supports storing state in MongoDB. |||| Dynamic support for multiple folders per collection. || H5 || No || As of Horde 5.2, multiple folders are automatically synchronized when possible, or "multiplexed" together otherwise. ||  |||| EAS 2.5 (Exchange 2003 SP2) ||  ||  ||  ||  |||| Email sync || H5 - Using the efficient <a href="https://wiki.horde.org/Project/HordeImapLib">Horde_Imap_Client library</a>. || Yes, using either Zarafa server or the "imap" backend which uses the built in php imap functions. || Yes ||  |||| Email type property || H5 || No || No || This property provides clients the ability to display appropriate icons for the type of message. E.g., Meeting requests, MDN etc... |||| Hierarchical folder support || H5 ||  ||  ||  |||| Calendar sync || H4 || Yes, when syncing against Zarafa server. || Yes ||  |||| Full meeting request/response || H5 || Yes, when syncing against Zarafa server. || No. ||  |||| Tasks sync || H4 || Yes, when syncing against Zarafa server. || Yes ||  |||| Contacts sync || H4 || Yes, when syncing against Zarafa server. ||  ||  |||| GAL search || H4 || Yes, with a few backends. || Yes. ||  |||| Provisioning/Remote Wipe || H4 - with improvements to security policy support in H5. || Yes, with exceptions for some devices and limited security policy support. || Yes, with limited security policy support. ||  |||| EAS 12.0 (Exchange 2007) ||  ||  ||  ||  |||| Autodiscover || H5* || * Major improvements to Autodiscovery in H5.1. ||  ||  |||| HTML Email || H5 ||  ||  ||  |||| Email search for items not synched to client || H5 ||  ||  ||  |||| Email Flagging || H5 ||  ||  ||  |||| Full MIME support || H5 ||  ||  ||  |||| Set out of office message || H5 ||  ||  ||  |||| EAS 12.1 (Exchange 2007 SP1) ||  ||  ||  ||  |||| Reduced bandwidth features. || H5 ||  ||  ||  |||| S/MIME on device encryption, decryption, and signing || H5 ||  ||  ||  |||| EAS 14.0 (Exchange 2010 SP1) ||  ||  ||  ||  |||| Notes Sync || H5.1 ||  ||  ||  |||| SMS Sync || No ||  ||  ||  |||| Conversation View || TODO ||  ||  ||  |||| Reply state sync || H5.1 ||  ||  ||  |||| Free/busy lookup || H5.1 ||  ||  ||  |||| Nickname Cache || TODO ||  ||  ||  |||| EAS 14.1 (Exchange 2010 SP2) ||  ||  ||  ||  |||| Conversation Segments || TODO ||  ||  ||  |||| GAL/Search Photos || H5.1 ||  ||  ||  |||| Device Info || H5.1 || Device info can be used during provisioning process to allow finer control over device access/management. ||  ||  |||| TODO: Security policies. ||  ||  ||  ||  ||</table>