Zoho Mail on the Go
Zoho Mail provides you access from anywhere anytime. To allow the support from access from mobile devices, for the convenience of users, Zoho Mail provides, native mobile apps for iOS and Android platforms.
The native mobile applications, allow you to access your POP accounts as well, there by providing you the independence to access your emails via mobile for the Mail Add on accounts and still stay in sync with CRM/ Recruit applications.
You can also access your Zoho Mail from the light websites m.zoho.com designed for mobile devices or t.zoho.com designed for iPad and other tablets. The light web clients can also be used from normal browsers to access your emails, in case you have a poor connectivity or network issues. You can easily perform the basic actions of reading/ replying to the emails, sending emails or even moving emails to folders and so on. You will not be able to modify the settings from the mobile sites.
Exchange Active Sync
You can configure your account via Exchange Active Sync from your mobile devices. Zoho Mail Suite supports the sync of email, calendar and contacts from iOS and Android devices. For Blackberry devices, you can sync calendar and contacts, as email sync is not supported. The Exchange Active Sync is supported for all accounts. For organization accounts, the administrator should enable the Active Sync access for the account.
Zoho Sync for Android and iOS uses Microsoft® Exchange ActiveSync® protocol to perform wireless synchronization of Zoho Applications with the built-in iOS/ Android device applications (Contacts, Calendar and Mail).
Username: Your Zoho Email Address (email@example.com for hosted accounts/ firstname.lastname@example.org for non hosted accounts)
Password: Your Zoho Password (If Two Factor Authentication is enabled, use Application Specific Password)
Domain : Leave Blank / Provide your domain name
Refer here for detailed instructions to configure your device.