Issues with some Delivery Status Notification
Incident Report for GatewayAPI
A fix has been deployed.
The affected customers have been contacted.
If you have not been contacted this issue should not have affected any of your traffic.
All the best.
The gatewayapi team
Posted Jan 17, 2018 - 10:52 CET
The problem has been identified, we are working to resolve it.

The issue is limited to smses send between 23:00:00-23:59:59 UTC, for people using the calbackurl and userref parameter.
Posted Jan 10, 2018 - 10:50 CET
The problem is isolated to to Delivery reports between 23 and 00 UTC, we will be monitoring tonight to be able to solve the issue.
Posted Jan 09, 2018 - 13:51 CET
We are currently investigating this issue.
Posted Jan 09, 2018 - 10:40 CET