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+If messages are exported to removable media, but not uploaded and acked yet, then they can also be uploaded to mailbox and vice versa. 
+
+https://code.briarproject.org/briar/briar/-/issues/2265
+
+This depends on 'latency period', which means that messages exported to the removable media can also be uploaded to the mailbox before the mailbox 'latency period' expires.  
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