Worked on enhancing the symfony/symfony repository by improving inline image handling for the MandrillApiTransport integration. Focused on backend development using PHP, the work introduced logic to use the Content-ID as the image name when present, while preserving the original filename if Content-ID was absent. This approach addressed issues with broken images in client inboxes and improved email deliverability for Mandrill-based communications. Comprehensive unit tests were added to verify correct Content-ID assignment and filename preservation, increasing test coverage for email rendering and asset handling. The changes contributed to more consistent inbox rendering and reduced support issues related to image display.