Our splunk server (indexer and search head) runs on Windows platform. We configured a remote PDF Server URL that points to a splunk pdfserver running at Linux. The status page testing showed that the PDF file can be generated and displayed correctly. I then configured to schedule a PDF delivery for a dashboard report. However, I've problem receiving the emails. The system administrator confirmed that connection from the Splunk server is spotted at the SMTP server log.
Here's the extract of the python.log. How can I troubleshoot further, and to confirm if it's a Splunk or SMTP server problem?