If an image is downloaded from a spammer's server, it confirms your email address is active, making you a target for more spam.
By default, Outlook stops pictures from loading in external emails for several critical reasons: outlook prevented automatic download
Blocking images saves data, which is useful on slow or metered internet connections. How to Fix or Unblock Image Downloads If an image is downloaded from a spammer's
If you trust the sender and want to see the full content of the email, you have several options depending on how often you want to see those images. 1. For a Single Email If you only want to view images for one specific message: outlook prevented automatic download