On March 29, at 00:00 UTC, Abnormal Security stopped processing Abuse Mailbox reported messages for a subset of EU customers. AMB processing is fully recovered as of 4/2/24 19:00 UTC. Abuse mailbox reports from during this incident period will be automatically reprocessed, and no customer action is required.
Microsoft has a planned deprecation for Outlook REST v2.0 endpoints by 03/31/2024 and requires all clients to migrate to the Graph API by that time frame. During the mandatory migration of our mail notification processing to Graph API, the team identified that the Graph API does not return a necessary value in its responses compared to the Outlook REST API. This caused Abuse Mailbox processing to come to a halt for a subset of EU customers between 3/29/24 00:00 UTC and 4/2/24 19:00 UTC
Affected Services: Abuse Mailbox
Severity Level: Major
Incident Start Time: March 29, at 00:00 UTC
Recovery: We deployed a fix at 4/2/24 19:00 UTC and confirmed that abuse mailbox processing is recovered for all affected customers
What We're Doing: Abuse mailbox reports from during this incident period will be automatically reprocessed, and no customer action is required.
On March 29, at 00:00 UTC, Abnormal Security stopped processing Abuse Mailbox reported messages for a subset of EU customers. Those impacted have been notified. The issue is related to the mandatory Microsoft Graph API migration, where the Graph API did not return a necessary value in its responses, which caused Abuse Mailbox processing to come to a halt.
Affected Services: Abuse Mailbox
Severity Level: Major
Incident Start Time: March 29, at 00:00 UTC
What We're Doing: We're testing a fix and expect to deploy it in the next hour.
Workaround: We've been running manual recovery since 15:00 UTC on 04/02/24.
Recovery: Once the fix is rolled out, we will be reprocessing all affected Abuse Mailbox messages from the incident period