Twilio incident
SMS Delivery Receipt Delays from Twilio to MTN Swaziland
Twilio experienced a minor incident on September 15, 2026 affecting SMS, Middle East & Africa, lasting 4h 12m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 15, 2026, 12:31 AM UTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio to MTN network subscribers in Swaziland. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
- identified Sep 15, 2026, 12:46 AM UTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio to MTN network subscribers in Swaziland. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
- monitoring Sep 15, 2026, 01:56 AM UTC
We have observed a recovery in SMS delivery receipts from Twilio to MTN network subscribers in Swaziland and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- monitoring Sep 15, 2026, 03:57 AM UTC
We have observed a recovery in SMS delivery receipts from Twilio to MTN network subscribers in Swaziland and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
- resolved Sep 15, 2026, 04:44 AM UTC
The incident has been resolved and SMS delivery receipts from Twilio to MTN network subscribers in Swaziland are operating normally.