I have a customer that is trying to use the "attachment" option to email uploaded files as part of the business process. Whenever that option is used, emails will not send. I tested on our cloud system, and every time the attachment option is used (both in the email service task and when emailing for a user task), the emails fail to send and suspend the process.
On a whim, I then tested this in my on-prem Forms system (10.4.5.282) with the same results, whenever you use the attachments option the emails fail.
I'm almost positive I used this feature in the past, but have no idea what's going on. Has anyone else seen this or know of a fix? Thanks for any ideas, at a loss right now.