I'm trying to get our Splunk to integrate with Amazon SES but I'm not have had any luck so far. E-mails can be sent out on the Linux box using sendmail so there is nothing wrong with Authentication and the e-mail delivery part. Somehow Splunk refuses to send the e-mail and fails on Authentication failed. This is the error I'm seeing on /usr/local/splunk/var/log/splunkd.log
01-10-2014 19:31:10.319 -0500 ERROR ScriptRunner - stderr from '/usr/local/splunk/etc/apps/search/bin/sendemail.py': ERROR:root:(535, 'Authentication Credentials Invalid') while sending mail to: email@email.com