Reminder emails not being sent if the first signer initiated the submission

The customer, is reporting that form verification reminder emails are not being delivered to a student, The customer has attempted to send reminders multiple times today (2026-09-14) and confirmed that the email address is accurate and the recipient has checked spam/junk folders. This issue has reportedly occurred with another student a couple of weeks prior. Despite troubleshooting steps, including manual reminder sends and checking email filters, the emails are still not going through. The system initially indicated the email was sent and viewed, suggesting a potential spam filter interception, but the customer insists no reminders were received. A bug ticket has been submitted by the admin to investigate system delivery logs and clear any blocked email dispatches.