The LetMobile app is designed to run in the background and allow you to use your native iOS email application (or any email app) for securely reading corporate email (including contacts, calendar items and attachments).
NOTE: The free LetMobile app requires use of LetMobile enterprise platform for all operations. Please consult with your companys IT organization before downloading this application. The LetMobile app will not operate without the necessary back-end system.