SMX Cybersecure Email incident

Intermittent inbound office 365 emails queued

Major Resolved View vendor source →

SMX Cybersecure Email experienced a major incident on October 6, 2021 affecting Mail Filtering, lasting 7h 24m. The incident has been resolved; the full update timeline is below.

Started
Oct 06, 2021, 10:51 PM UTC
Resolved
Oct 07, 2021, 06:15 AM UTC
Duration
7h 24m
Detected by Pingoru
Oct 06, 2021, 10:51 PM UTC

Affected components

Mail Filtering

Update timeline

  1. identified Oct 06, 2021, 10:51 PM UTC

    Currently some inbound emails for Office 365 are being queued .There will be a delays in receiving emails. We are investigating the cause of this at present.

  2. monitoring Oct 06, 2021, 11:11 PM UTC

    We are aware of delayed delivery of inbound mail for SMX customers on Microsoft 365, due to Microsoft rate-limiting of SMX IP addresses. We have moved mail delivery to an alternative delivery address until the rate-limiting issue has been resolved. Any mail queued for delivery against Microsoft 365 has now been delivered.

  3. monitoring Oct 07, 2021, 03:29 AM UTC

    We are continuing to monitor for any further issues.

  4. resolved Oct 07, 2021, 06:15 AM UTC

    The SMX Filtering platform is no longer being rate-limited, and this incident is now resolved.