Chapter 36 Support for ActiveSync
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## Chapter 36 Support for ActiveSync

Support for the ActiveSync protocol allows users to synchronize their email, calendars, contacts and tasks with mobile devices with Microsoft Windows Mobile, Palm OS, Symbian and OS X operating systems (for updated list of supported mobile devices, see section 36.2 Supported versions of ActiveSync and mobile devices). The ActiveSync protocol is based on HTTP(S). For network connections, it uses WiFi, GPRS, UMTS and other technologies.

Kerio MailServer includes direct support for the protocol and therefore there is no need to install any supportive utility if the device also supports ActiveSync. If the device does not support the protocol, it is necessary to install an application which allows the synchronization on the device. Description of configuration of all particular devices is included both in the device's user's guide as well as in the Kerio MailServer 6, User's Guide. In chapter Synchronization over ActiveSync, simple and clear instructions on synchronization settings for all supported devices are provided.

And also, no settings in Kerio MailServer are required for the support. The only requirement is that the HTTP(S) service must be running on the default port (i.e. port 80 for HTTP and port 443 for the SSL-secured version). On most of supported mobile devices, ports cannot be changed to non-standard ports.

### Warning

In addition to running of services on the server, it is also necessary to map corresponding ports for HTTP and HTTPS on the firewall protecting the server. Otherwise, the service will not be available from the Internet (for details, see section 2.3 Firewall configuration).

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35.2 CalDAV account in Apple iCal | Contents | 36.1 Synchronization methods