Here are some messages from my own personal email archive. Click on a message to see how it looks, now that Email Archiver has converted it. (Some confidential details have been deleted. And obviously, when you use Email Archiver yourself, you certainly don't have to put your archives on the Internet as I have done here!)
You can also download the email store that contained those messages. The store happens to be in Berkely Mail Format, which I downloaded from the unix machine that is my IMAP server. Berkely Mail Format is a standard way of storing messages on Unix, and it is fully supported by Email Archiver.