Improve design of the timeline in UI. Each email takes up a lot of space - and the emails are always blocked when there is a link in a signature. (It is such an American warning ("The Coffee is hot" =="The internet may have harmful content")
The timeline shows the email sender but not the recipient(s).
There is a lot of white space .
All the examples I can find online are with demonstrations of tasks and appointments - and not emails. With emails on the timeline the design seems to lack a lot in user friendliness.