User cannot delete emails in MS Outlook 2007. When in "Inbox" or an open email and selecting "delete", nothing happens....no deletion.
However, if you go back to inbox and view another email and then search for the previous email that you wanted to delete, it has been deleted (deleted items).
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online.
The email signature template has been downloaded from: