ActiveSync provides the highest level of integration for the latest mobile devices including iPhone/iPad, Android and Windows Phone 7. It is also available on most other mobile platforms.

ActiveSync is able to negotiate changes and updates protocol uses a technology that is often referred to as "Push".

The "push" technology means that changes that are made on the mobile device are synchronized with Signetique Business Email without requiring polling.

You will need ActiveSync if you would like your emails in your mobile device, calendar, contacts synced to the Signetique Business Email's server. If however, all you need is emails on your device and does not require the syncing of calendars and contacts, you can also use the IMAP protocol to retrieve emails on your mobile devices.