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+Reference: [Mailbox scenarios](https://code.briarproject.org/briar/briar/-/wikis/Mailbox-Scenarios)
+
+
+### Scenario 1: No mailbox
+
+When X and Y don't have mailboxes:
+
+* X and Y will only exchange messages and acks when X and Y are online at the same time
+
+In this scenario, two contacts (X and Y) communicate without a mailbox. While Y is offline, X writes a message to Y. The message is not sent (clock icon) until X and Y are online at the same time. When X and Y are online at the same time, the message is sent and acked (two ticks).
+
+* Install Briar on X and Y
+* Add X and Y as contacts
+* In Briar's connection settings, turn off wifi and Bluetooth connections on X and Y
+* Take Y offline
+* Expectation: Y is shown as offline in X's contact list (after a delay of up to 1 minute for X to notice that Y is offline)
+* X writes a private message to Y
+* Expectation: X's message is shown as not sent (clock icon) in X's conversation screen
+* While keeping X online, bring Y back online
+* Expectation: X is shown as online in Y's contact list and vice versa (after a delay of up to 2 minutes for X and Y to connect to each other)
+* Expectation: X's message appears in Y's conversation screen
+* Expectation: X's message is shown as sent and acked (two ticks) in X's conversation screen
+
+The aim of this test is toverify that messages still behave as they did before the mailbox realted functionality was introduced into Briar code.
+
+Executed with the following pairs of devices: 
+briar build: 34815eb1a51d3aac2f0978d0066c694c963afc3b , 21/09/2022
+
+- HTC E9 Andoid 5 and Huawei P40 Lite 5G Android 11
+- 
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