Resolved
We are no longer seeing delays in Defender checks.
Monitoring
We are no longer seeing delays in CEPAPI Defender checks.
Our team is continuing to monitor this issue.
Identified
Around 4pm UTC we began seeing delayed Defender checks for inbound emails. For API users, emails may experience up to a 600 second delay for emails to be checked and quarantined.
We are looking into this and will provide updates here.