Version:

• listmonk: v3.0.0
• OS: Ubuntu 18.04

Description of the bug and steps to reproduce:
We use Listmonk regularly to send weekly newsletters to our audience. It has worked well till now. However, yesterday's campaign stopped abruptly and moved to the FInished state without emailing half of the audience.

Our setup - AWS EC2, Ubuntu 18.04, integrated AWS SES with reasonable limits + healthy reputation inside SES.

I tried checking the logs on listmonk > Menu > Logs and see this "2024/08/09 14:08:43write tcp 127.0.0.1:9000->127.0.0.1:52306: write: broken pipe". Apart from this, all others are only "error processing SES notification: notification type is not bounce
"

1. How do we investigate what went wrong and why the campaign moved to the finished state.
2. How do we know which users were not sent the newsletter email and send to them again.

Thank you for your kind help!

Screenshots:
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