Intermittent 503 Errors at the Message Send Endpoint

What to do

• Check whether you use Twilio Programmable Messaging API. 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 59m it lasted.

  Anything that failed between 2026-06-26 21:58 UTC and 2026-06-26 22:57 UTC may need a replay.

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

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

Updates from Twilio 3

1. investigatingJun 26, 2026, 9:58 PM UTC

   Our monitoring systems have detected a potential issue with increased 503 errors when calling the Messaging API endpoint. Our engineers have been alerted and are investigating. We will provide an update when we have more details.

   provider

2. monitoringJun 26, 2026, 10:30 PM UTC

   The intermittent 503 errors have recovered and the Message Send endpoint is now operating normally. We will continue to monitor for system stability. We'll provide another update in 30 minutes or as soon as more information becomes available.

   provider

3. resolvedJun 26, 2026, 10:57 PM UTC

   The intermittent 503 errors have been resolved and the Message Send endpoint is operating normally at this time.

   provider

Corrections

None so far.

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