inline image not sent

Version: - listmonk: 6.2.0 - OS: docker image on Linux Debian 13 Description of the bug and steps to reproduce: • prepare a campaign • use rich text content and add an image • send a test to a known email (here it was my email address @gmail.com) • test is ok • go to the webmail • _The image is missing from the content._ • use "Display images below " in gmail • nothing Screenshots: in the DOM, the image is <img width="300" height="102" alt="">, so no content in the log, I see : 2026/10/28 18:33:11.276567 manager.go:756: inline image "data:image/jpeg;base64,/9j/.../Z" not embedded: code=404, message=not found. if I copy paste the image data in a web browser address bar, it display the image. BTW, having the whole data in the log was convenient in this case but is takes a lot of storage, especially when the error repeat for each recipient. when I use "view in the brow…