Arrow Mail Log records emails sent through WordPress so administrators can review what was sent and whether WordPress reported the message as sent or failed.
The free plugin includes:
* WordPress email logging.
* Basic mail log list.
* Sent / Failed status.
* Message and header viewer.
* Automatic 30-day log retention.
Arrow Mail Log Advanced is a separate commercial add-on available from Arrow Design. It adds search, filtering, resend tools, attachment information, configurable retention, Mail Health monitoring, failure diagnostics and alerts, reports, charts and CSV export.