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+If the user or device itself switches the Battery optimisation setting to On for any reason, or at any point, then... the Mailbox app potentially will not work as intended - as the device may decide to kill it if it judges that the app uses too much battery life.
+
+In this case - should the user be given any message to inform them of this?  
+
+To keep track of this issue - this ticket is reported
+
+https://code.briarproject.org/briar/briar-mailbox/-/issues/120   
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