diff --git a/briar-mailbox-tests-executed.md b/briar-mailbox-tests-executed.md
index a5232b0..ddec744 100644
--- a/briar-mailbox-tests-executed.md
+++ b/briar-mailbox-tests-executed.md
@@ -49,7 +49,11 @@ These are test that are executed to retest the Proguard Minification ticket [173
 
 - Contact 1 online, mailbox 1 stopped.  Contact 2 offline, mailbox 2 online.  Expecting contact 1 to upload a message for contact 2 to the mailbox 2.  Message gets 1 tick = OK.  
 - bringing contact 2 online so it can download the message from its own mailbox.  Contact 1 goes offline (and its mailbox is stopped) - which means if contact 2 receives a message it was only able to receive it from its own mailbox = OK
-- contact 2 goes offline, and contact 1 back online, so it can receive the ack from contact's mailbox
+- contact 2 goes offline, and contact 1 back online, so it can receive the ack from contact's mailbox - 8 mins later it did not receive the ack.
+
+- things to try: unlink its own mailbox, see if that makes a difference?
+- things to try: send a reply from contact2, via mailbox2 - to see if the previous message receives the ack together with the reply.  Then see if contact 1 ack arrives back to contact 2 via cmailbox 2 (to see if maybe contacts receive acks only via their own mailboxes?)
+
 -