Resolved incident

SMS Delivery Delays and Delivery Receipt Delays from Twilio to Chunghwa Telecom Taiwan

SendGrid · Minor · Started

Duration
5h 29m
Severity
Minor
Status
Resolved

Summary

Minor · Resolved

The incident has been resolved and SMS delivery and delivery receipts from Twilio to Chunghwa Telecom network subscribers in Taiwan are operating normally.

View official incident ↗

Event timeline

How this incident unfolded, from the official status page.

  1. Investigating

    SendGrid

    Twilio customers may be experiencing SMS delivery delays and SMS delivery receipt delays from Twilio to Chunghwa Telecom network subscribers in Taiwan. 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.

  2. Identified

    SendGrid

    Twilio customers may be experiencing SMS delivery delays and SMS delivery receipt delays from Twilio to Chunghwa Telecom network subscribers in Taiwan. 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.

  3. Identified

    SendGrid

    Twilio customers may be experiencing SMS delivery delays and SMS delivery receipt delays from Twilio to Chunghwa Telecom network subscribers in Taiwan. 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 2 hours or as soon as more information becomes available.

  4. Monitoring

    SendGrid

    We have observed a recovery in SMS delivery and delivery receipts from Twilio to Chunghwa Telecom network subscribers in Taiwan and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

  5. Monitoring

    SendGrid

    We have observed a recovery in SMS delivery and delivery receipts from Twilio to Chunghwa Telecom network subscribers in Taiwan and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.

  6. Resolved

    SendGrid

    The incident has been resolved and SMS delivery and delivery receipts from Twilio to Chunghwa Telecom network subscribers in Taiwan are operating normally.