Please be informed that we have identified a delivery receipt delay issue for messages sending towards France Bouygues Telecom.
For some of your messages sent between 01:30 GMT 28/Mar/2021 and 05:03 GMT 29 Mar 2021, delivery receipts maybe delayed while the actual delivery to the subscribers of this network are not being impacted. We have implemented a fix at 05:03 GMT 29 Mar 2021 and no more impacted is observed since then.
We are currently monitoring closely and will post updates should anything change. Please contact firstname.lastname@example.org
if you have any questions.