SendGrid outage, October 2026: Silent Network Authentication (SNA) Missing Redirects on Smart in Philippines

SendGrid reported and resolved an incident: Silent Network Authentication (SNA) Missing Redirects on Smart in Philippines. It lasted 3.3 hours.

Resolved

From SendGrid's official status page, in their words.

What happened

Started
Resolved
Duration
3.3 hours
Impact
minor
Affected
Verify Silent Network Auth

Why it happened

SendGrid has not given a cause in its updates. We never guess one.

This incident on the SendGrid status page

Timeline

Newest first. From SendGrid's official status page, in their words.

  1. resolved

    The incident has been resolved and API transactions for Silent Network Authentication (SNA) on Smart in Philippines are operating normally.

  2. monitoring

    We have observed the recovery in API transactions for Silent Network Authentication (SNA) on Smart in Philippines and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

  3. investigating

    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Smart in Philippines. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 4 hours or as soon as more information becomes available.

  4. investigating

    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Smart in the Philippines. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 2 hours or as soon as more information becomes available.

  5. investigating

    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Smart in Philippines. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 1 hour or as soon as more information becomes available.

What this means for a business (and what to check now)

  • Retry anything that failed during the 3.3 hours.
  • Enter any payments, bookings or jobs you took another way.
  • If a deadline fell inside the window, keep this page as your record of the outage.

The full guide: what to do when a service you rely on is down

Other SendGrid incidents

Hear about the next SendGrid incident as it starts

Free email alerts when the official status changes, with what to do while it is down.