Background email checks and user notifications

ivanti email+ relies on ios background execution to check for new email and to notify users in the following cases email+ may not be able to check for new email to conserve battery power, ios limits when third party apps can run in the background when email+ is sent to the background, ios occasionally allows email+ to check for new email ios may terminate email+ to reclaim memory for other apps ios may later decide to launch email+ for ios in the background to check email when email+ is in the background and attempts to check email, as an appconnect app that encrypts its content, email+ must retrieve its encryption key from the uem client this requires an app flip to the uem client, which cannot happen in the background as a result, email+ cannot retrieve the encryption key and therefore cannot verify working hours for notifications or check for new email to allow email+ access to the encryption key even when it is in background, configure the allow device keychain key value pair to allow email+ to store the key in the device keychain this allows email+ to check for new email even when ios launches it in the background the allow device keychain key value pair should only be used with a strong device passcode so as to secure the decryption key how ivanti email+ for ios checks for new emails the following describes how email+ for ios checks for new emails when the email+ for ios ios user launches email+ checks for new email and notifies the user of new email allows email+ for ios to run as usual app is in the background occasionally checks for new email and notifies the user, depending on ios background refresh might do a periodic background refresh ios may sometimes terminate an app to preserve battery power or memory if ios terminates and then attempts to relaunch email+ for ios while the device is locked, then the decryption key is not accessible for reasons of security, and ios cannot relaunch email+ for ios ios learns user habits and adjusts its background refresh parameters accordingly as device users work with email+ for ios more frequently, ios similarly launches email+ for ios in the background more frequently