Delivery Issue Belgium - Proximus

What to do

• Check whether you use Sinch SMS - EMEA in eu. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 3h 19m it lasted.

  Anything that failed between 2026-09-27 22:49 UTC and 2026-09-28 02:08 UTC may need a replay.

• Subscribe to Sinch's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=sinch works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Sinch 4

1. investigatingSep 27, 2026, 10:49 PM UTC

   We are currently observing delivery issues in Belgium - Proximus Incident Start Time: 2026-09-27 22:01 UTC Impact: Delayed MT's/Delayed MO's/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.

   provider

2. identifiedSep 27, 2026, 11:51 PM UTC

   The carrier has confirmed a degradation on their end, and they are currently working on resolving the issue. As soon as we have any updates, they will be shared accordingly.

   provider

3. monitoringSep 28, 2026, 1:34 AM UTC

   A fix has been implemented and we are monitoring the results.

   provider

4. resolvedSep 28, 2026, 2:08 AM UTC

   This incident has been resolved. Incident Start Time: 2026-09-27 22:01 UTC Incident End Time: 2026-09-28 02:00 UTC

   provider

Corrections

None so far.

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