Threads whose only messages were sent from the composer no longer show sender and recipient reversed: the detail header reads From / To , and the conversation list row shows "from " when the last message was outbound
Replying on a thread with no externalAddress now addresses the original recipient instead of the sending role email when the selected message is outbound
Outbound composer sends no longer lock internal role, mailbox or identity emails in as a thread's externalAddress: the first external recipient (To then Cc) is used, or null when every recipient is internal
The "Replying from a shared inbox" CC role buttons wrap cleanly: wrapped rows are spaced apart and start flush left