Send As, Send On Behalf, public folder, out of office and recover deleted items

Hello

  1. I notice the em client don’t have a option send as (from) when you create or replay to email. For example: I receive the email on my pubic folder account. It is call test@test.co.uk. I would like send replay using the test@test.co.uk instead using my company email. The server is base on exchange 2013. 

  2. Public folder is not subscribe subfolder. for example. It is a folder with the name test and inside this folder are subfolders, but to see them I must subscribe them individually one by one.

  3. Em client read message out of office from the exchange server as html code. It should be create/read like normal email without any html marks

  4. Is it possible to have the option “recover deleted items”?

Many thanks