Inserted images do not appear when I send or receive emails.

I cannot send or receive emails with an image inserted (insert, image). My settings are set for “Display Unsafe Content From People in Contacts List”. When I send or receive the email, the image is simply missing and replaced with white space.

I figured out the problem. My settings were set for plain text. Once I changed that the images appeared. To change out of plain text:

Tools
Settings
Read
Uncheck: Read All Messages in Plain Text