OneCall NZ experienced a minor incident on October 11, 2023 affecting Microsoft 365, lasting 16h 26m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 11, 2023, 03:31 AM UTC
We are seeing delays in relaying emails from our system through to Microsoft 365 Exchange Online. Typically your photocopier may use this service. We are currently investigating and will provide an update shortly.
- identified Oct 11, 2023, 09:43 AM UTC
We have identified the issue. Microsoft’s spam filters have classified our relay incorrectly and are throttling connections from it. If we manage your Microsoft 365 services, we are implementing a workaround within your service to bypass this issue. We will continue to work with Microsoft to get a permanent resolution. Note this issue only affects delivery of email to customers using Microsoft’s Exchange Online platform.
- resolved Oct 11, 2023, 07:58 PM UTC
Microsoft has posted a notice regarding this issue (EX680695) and has marked it resolved October 12, 2023 at 6:00 AM