I have a self-hosted Chatwoot installation, and occasionally, I encounter issues where chat transcripts fail to send via email from the app. Upon investigating, I found that these errors appear in the Sidekiq dashboard under the Dead tab.

The failures are relatively rare, occurring approximately 1 in 3000 cases, but due to high volume, I end up seeing 10+ failed jobs per day.

Has anyone experienced similar intermittent failures? What could be the potential causes, and how can I mitigate or debug this issue effectively?

Any insights would be greatly appreciated!