OIC Notification action not sending email, but showing success

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Hi all,

I am trying to send email notifications to users within an OIC integration. it's a simple "this integration is successful" email to multiple recipients and sometimes emails are sent, but sometimes emails do not send. How do I prevent this from happening? I don't mess with the integration and it will send emails for a couple of days and then just stop sending out of no where even though when I check the logs, it says an email was sent.

I am using "no-reply@oracle.com" as the "from".