Hello, We have an issue with linked images with the following setup: Machine A is a reverse proxy. It is accessible from Internet. Machine B hosts Mailwizz. It is not accessible from Internet. System urls are as follows: API: http://MACHINEA/newsletter/api/index.php Customer: http://MACHINEA/newsletter/customer/index.php Backend: http://MACHINEA/newsletter/backend/index.php Frontend: http://MACHINEB/newsletter/index.php Problem: when a campaign is sent, all linked images included in sent e-mails have a URL of the following form: http://MACHINEB/newsletter/frontend/assets/files/customer/hs426wz7cx29e/Banner_Newsletter2.png So, all the images have a link which refers to the machine B, which is not accessible from the Internet. SO images are not available. Is there a proper way to solve this issue, like being able to set the "image base URL", or something else ? Is there a canonical way you would recommend for a setup with a reverse proxy ? *** Ours needs: One public machine, acting as a reverse proxy. Does not hosts any application. One protected machine, accessible only by the reverse proxy and intranet adresses. Thank you in advance for your answer.