Note: This is the "How to" for Boxer for Android. If you are looking for the iOS version, you can find it here:
Allow remote images - iOS
To allow remote images to be displayed in an email, take the following steps:
1. Open up an email that does not have all of the images automatically displayed.
2. Tap on "Show pictures".
3. If you'd like the images to always be displayed for this particular sender, tap on "Always show pictures from this sender".