I had used schedule to send mail. But there are some mail fail to send.
the log file is shown : stat=User unknown
how do I check where is the problem? thanks.
I recommend showing more of the line and stating what file. Most likely this is the line from sendemail.py in python.log, and is probably the message from the mailserver. Maybe ask the maiserver admins if they see anything helpful on their end?
check out splunk/var/log/splunk/python.log