Delayed Delivery Reports When Sending to MCI Network in Iran

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery report delays when sending messages to MCI network in Iran. This incident has been resolved.

Posted Jun 29, 2021 - 17:03 PDT

Monitoring

We are observing recovery in SMS delivery report delays when sending messages to MCI network in Iran. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jun 29, 2021 - 15:42 PDT

Update

We continue to experience SMS delivery report delays when sending messages to MCI Network in Iran. Our engineers are still working with our carrier partner to resolve the issue. We will provide another update in 1 day or as soon as more information becomes available.

Posted Jun 29, 2021 - 10:28 PDT

Update

We are still experiencing SMS delivery report delays when sending messages to MCI network in Iran for all Twilio traffic. Our engineers continue to work with our carrier partner to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.

Posted Jun 28, 2021 - 18:44 PDT

Update

After investigation of delivery delays when sending to the MCI network in Iran, it was determined that message delivery was not impacted. However, we have confirmed that Delivery Reports are being delayed, and our engineers continue to work with our carrier partner to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

Posted Jun 28, 2021 - 11:00 PDT

Update

We are still experiencing SMS delivery delays when sending messages to MCI network in Iran for all Twilio traffic. Our engineers continue to work with our carrier partner to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

Posted Jun 28, 2021 - 10:05 PDT

Update

We continue to experience SMS delivery delays when sending messages to MCI network in Iran for all Twilio traffic. Our engineers are still working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jun 28, 2021 - 08:08 PDT

Update

We are experiencing SMS delivery delays when sending messages to MCI network in Iran for all Twilio traffic. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Jun 28, 2021 - 07:17 PDT

Investigating

Our monitoring systems have detected a potential issue with SMS delivery delays when sending to MCI network in Iran. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted Jun 28, 2021 - 07:05 PDT