Outage in Zipwhip
AT&T RCS Messages are Failing With 403 HTML Error
Resolved MinorIncident Report
Our engineers are investigating an issue where AT&T RCS Messages are failing With 403 HTML errors. We expect to provide another update in 30 minutes or as soon as more information becomes available.
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Latest Updates ( sorted recent to last )
RESOLVED
4 months ago - at 12/11/2025 10:25AM
This incident has been mitigated, for further updates relating to this please see incident: "SMS and RCS Delivery Failures on AT&T Network".
INVESTIGATING
4 months ago - at 12/11/2025 09:45AM
Our engineers are investigating an issue where AT&T RCS Messages are failing With 403 HTML errors. We expect to provide another update in 30 minutes or as soon as more information becomes available.
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