The AttestationServer (github.com/GrapheneOS/Att) alert email system has been overhauled. The alerts still include a list of all problematic (expired) devices. However, it now tracks the last time it sent out an alert for each device and they can't trigger multiple alerts per day.
Conversation
Replying to
This makes the alert emails much less annoying, which was a major complaint about the previous implementation. It still checks for expired devices just as frequently, and will still send out an alert about a newly expired device just as promptly since it tracks this per device.
1
2