Where to set email for update notifications?

Hello,

Dashboard warns me:

An attempt to send an email to "" with update notifications failed
Where is this email set?
“Notification settings” under “System Admin” only offers “Storage Notifications” and “Intrusion Detection Notifications” which are both sent to valid email addresses and I am receiving fail2ban messages.
Also, Update->Scheduler and alerts has valid email.

PBX Version:16.0.10.49
PBX Distro:12.7.8-2112-4.sng7
Asterisk Version:16.20.0

-Heinrich

Admin → Module Admin → Scheduler Alerts tab

Thanks for reply! Yet, there is an address given:

-Heinrich