The script now searches:
- /var/log/exim_mainlog (Exim delivery logs)
- /var/log/maillog (Dovecot auth + delivery)
- /var/log/messages (fallback)
This fixes the issue where only auth logs were found but actual
email deliveries were missed because they were in different log files.
Now properly separates delivery events from authentication events
across all log sources.
cschantz
1c3e971412