Paubox incident
Intermittent delivery delay affecting customers emailing hotmail.com & outlook.com
Paubox experienced a notice incident on February 25, 2026 affecting Outbound Security, lasting 21h 13m. The incident has been resolved; the full update timeline is below.
Affected components
Outbound Security
Update timeline
- monitoring Feb 25, 2026, 10:25 PM UTC
We are observing intermittent delivery delays affecting a limited subset of outbound messages to certain external domains (including hotmail.com and outlook.com). Our systems remain fully operational. We are actively monitoring and adjusting sending patterns as needed.
- resolved Feb 26, 2026, 07:38 PM UTC
We are no longer observing intermittent delays - all mail that was deferred yesterday has been delivered.