I noticed some strangeness of behaving of Outbox. See the steps:
a) go to offline in mail component
b) clove evo family *
c) run evolution on console
d) go to contacts component (I use buttons on the left here)
e) on one contact with mail filled do "Send Message to Contact"
f) fill something there and hit send
g) close evo family *
h) run evolution on console (still in contacts)
i) with other email-capable contact "Send Message to Contact"
j) go to mail component (again with button on the left bottom)

*) by "close evo family" I mean:
   1) close evolution
   2) invoke evolution --force-shutdown to close eds and other too

Actual results:
Local Outbox in tree shows (2), but only 1 message is shown in the list

Expected results:
See both messages on a first hit. The only way I found how to show the second message was to delete the first. And it also sometimes works and sometimes not. But definitely related to this, thus let it be for now.