The Mail App allows you to perform all of the same functions of the standard Mail desktop module, such as scanning barcodes and delivering mail items to recipients, with the added portability of your preferred iOS mobile device. If you are new to the Mail App, refer to Mail App - Screen Overviews to review the screens used to check-in, view, edit, and deliver your mail items.
This app is optimized for iPod Touch and iPhone (requires iOS 11.0 or newer). The app can also be accessed using an iPad Air (original and newer), iPad Mini (generation 4 and newer), or on various Android devices (Android 6.0 or newer).
Learn how to download iOffice Mobile Apps on Apple Devices and if you need additional information on setting up your iPod Touch device, refer to https://www.apple.com/support/ipodtouch/setup/.