By default, Splunk will export CSV files attached as “splunk-results.csv” and deliver it in the email. Is there a way we can configure our custom file name? like "customname1.csv" or based on the saved search name?
Only option that I'm aware of is by updating the sendemail.py script. Be aware that the changes will wipe out during upgrade.
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As I had the same problem (and this is the first result on Google), I figured out a permanent solution that can be customized per alert.
savedsearches.conf, go to your alert, and add this line:
action.email.reportFileName = here-goes-your-filename-without-csv-extension
Splunk will then use that setting, add
.csv and attach that file to your alert email. As far as I understand it, every setting from alert_actions.conf can be overridden in savedsearches.conf, e.g.
# alert_actions.conf [email] reportFileName = something
# savedsearches.conf alert.email.reportFileName = something
reportFileName with the setting of your choice 😉