I need an experienced Laravel developer to help me fix a sending issue in my custom newsletter system. The system works fine for small mailing lists, but when I try to send to about 40,000 subscribers, the process fails and shows this message: “Error sending campaign. Please try again.” I’m using Amazon SES for email delivery. The issue is likely related to how emails are being queued or processed when handling large volumes. I need someone who can: • Review and optimize the sending logic (backend + queues) • Implement proper chunking or batching for large lists • Ensure stable queue handling (via Laravel queues + Supervisor) • Improve error handling and logging for better debugging • Make sure sending large campaigns via SES works smoothly Tech Stack: • Laravel • MySQL • Amazon SES (email service) • Nginx / Ubuntu (AWS EC2 micro instance) • Supervisor for queue processing Goal: Make the newsletter system reliable and scalable for sending campaigns to 40k+ subscribers using SES, without timeouts or failures. Please include: • A short explanation of how you’d approach this problem • Estimated time and cost