The following links will assist you in setting the email clients on your various devices. Please note, all of these links point to instructions on Microsoft's website. As updates are made to Office 365, these instructions will also be modified to show the most up to date information. The same is true if your tablet or mobile phone Operating System is upgraded. If you experience problems connecting your device to Office 365, you may want to check this site to see if changes are required in the setup for your device.
What else do I need to know?
You don't use Outlook Web App to manually specify the devices you want to synchronize with your account. Devices that you connect to your account are displayed as connected devices within Outlook Web App after you have created a connection to your mailbox.
To view the devices that you have connected to your account, in Outlook Web App, click Settings > Options > Phone > Mobile devices.
If you connect to your mobile device using Exchange ActiveSync and lose your mobile device, you can remotely remove all of your mailbox data from it from within Outlook Web App. Be aware that you'll also lose any information on your device's storage card. When you perform a remote device wipe from your mailbox, you can view a confirmation email as soon as the remote device wipe is complete. For instructions, see Delete all information from your lost phone or tablet.