Twilio outage on November 12, 2026: Email Delivery Delays to Microsoft Inbox Providers
Twilio has reported an incident affecting Twilio since 19:42 UTC on 12 November 2026 (1 hour 23 minutes so far).
Open
Official incident reported by Twilio
- Started
- 19:42
- 12 Nov 2026 UTC
- Status
- Open
- not resolved yet
- Duration
- 1h 23m
- 1 hour 23 minutes so far
- Impact
- Minor
- as rated by Twilio
- Updates
- 3
- posted by Twilio
Timeline
All times UTC.
Official incident from Twilio
Email Delivery Delays to Microsoft Inbox Providers
-
Official
Investigating
We have identified an issue with Email. Users may experience delays in message delivery to some inboxes hosted by Microsoft This does not impact mail send targeted to other inbox provider other than Microsoft. We will provide another update in 1 hour or as soon as more information becomes available.
-
Official
Identified
We have identified the issue of delayed email delivery to Microsoft inbox providers for Email. Due to a third-party provider dependency, messages to these inboxes may remain queued longer than usual, but there is no mail loss at this time. We will provide another update in 1 hour or as soon as more information becomes available.
-
Official
Identified
We have identified the issue of delayed email delivery to Microsoft inbox providers for Email Inbox Providers. Due to a third-party provider dependency, messages sent to these inboxes are being deferred and queued for later delivery. There is no mail loss at this time. We will provide another update in 2 hours or as soon as more information becomes available.
"Official" rows are quoted from Twilio's public status page, status.twilio.com. Very long posts are shortened.
What our checkpoints saw
HostTracker's checkpoints, which test www.twilio.com from several locations, recorded no outage of 5 minutes or longer during this incident. A provider can report a problem that affects only some features, regions or accounts, which a check of the main address does not see. The live Twilio status shows what our checks see right now.
Does your product depend on Twilio?
An outage like this one reaches your users through your product, and most teams hear about it from a customer rather than from a dashboard. HostTracker watches any endpoint you name - your own site, an API you call, a vendor you resell - from 300+ locations, confirms a failure from several of them before it says anything, and then tells you by email, SMS, voice call or your chat tool.
You get the same record you are reading here for your own services: every outage timestamped, with the checks that observed it.
Independent measurement by HostTracker. Not affiliated with Twilio. Official updates are quoted from Twilio's public status page and remain Twilio's own words.