The thing is that when we were sending the message through Outbox
Evolution generates one message that is used for sending and another one
for saving to Outbox. But while creating the first message the images
inside the view are processed to cid images, so for the second message
they were not there. To avoid that we will restore the images in the
view right after we get the HTML version of view's content.
A simple Evolution run and move between all views means creation of
more than 100 GSettings objects, with only a bit more than 10 schemas.
Reusing the objects should have a positive impact on a performance too.