When looking at emails in Daylite the content is not shown. It just says "No Content".
When the email was added to Daylite from Apple Mail by the Daylite Mail Assistant, the preview area in Apple Mail was not visible.
Make sue that Apple Mail shows you a preview pane for the email you want to add to Daylite. Then please add the email to Daylite again.
What is the Daylite Mail Assistant (DMA)?
How do I install the Daylite Mail Assistant (DMA)?
How do I link an email with an existing Daylite contact?