Using CiviProxy with the current setup:
intranet site: intranet.com
proxy site: proxy.com
- emails received in mail client do not load images, and show links as intranet.com/image.jpg
- all non image/resource links (such as 'View in your browser') work and correctly show as proxy.com/link
- 'View in your browser' page correctly shows images with links such as proxy.com/image.jpg

Using CiviProxy with the current setup:
intranet site: intranet.com
proxy site: proxy.com