ZMailMessage: The ZMailMessage Product

    Description
    
        This is an email object held within a Zope Object Manager.
        
        It consists of the following attributes:
        
            * id - A unique reference to the object.
            
            * title - A Title for the mail message.
            
            * subject - The subject line from the email message.
            
            * date - The date from the email message.
            
            * sortableDate - The same date but in a sortable text format.
            
            * to - Who the email was addressed to.
            
            * sender - Who the email was from.
            
            * replyto - The reply to from the email.
            
            * body - The body of the email.
            
            * headers - The entire headers from the email as a dictionary.