Message services are services that organise your mail in different places. By default, Execmail presents you with a Post Office, on the remote mail server where your mail is stored. To open your Post Office, click on the small plus sign to the left of the Post Office icon. You should see several folders. Folders are the second level of organisation of your mail.
Incoming mail is stored in the folder called 'inbox'.
To open your Inbox folder, click on the plus sign next to its name, as you did with the Post Office. A third level of organisation is provided by message groups. Initially, messages in a folder are divided into two groups, Main and Deleted. There are several different ways of arranging windows within Execmail. Generally, if you click on the plus sign next to a message service, folder etc, it opens in the same window.