Sinch experienced SMS verification delivery issues affecting traffic destined for China, beginning November 6, 2026, and lasting approximately 96 hours. The impact included delayed and failed message deliveries, as well as missing and late delivery receipts. The incident remained under investigation throughout its duration with no resolution update provided.
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We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are currently observing delivery issues towards China for SMS Verification traffic.
Incident Start Time: 2026-11-06 02:57 UTC
Impact: Delayed MTs/Failed MTs/Missing delivery receipts/Late delivery receipts
We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
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