Just ran into an issue with ISE 1.3 email notifications and was hoping that I might have overlooked a setting.
Basically if I create a self-registered guest ISE will send an email to both the listed sponsor and a confirmation email to the guest with credentials – this works fine. Furthermore I can go to the sponsor portal and click the self registered user then resend the credentials – this also works.
My problem is when I create a "known guest" user from the sponsor portal. Basically I create the account and hit the notify button, select email and click ok – ISE then throws an error saying unable to send email. I click the user and click resend and likewise I cannot send an email.
So in summary email notifications work for self registered guest type but not a known guest type.