End-to-end integration tests for communication via mailbox
Write end-to-end integration tests in which two Bramble components, representing a mailbox owner and a contact, communicate via a mailbox running on localhost.
Depends on #2228 (closed).
Write end-to-end integration tests in which two Bramble components, representing a mailbox owner and a contact, communicate via a mailbox running on localhost.
Depends on #2228 (closed).