Optus SMS Outage History

Optus SMS is up right now

Optus SMS had 8 outages in the last 2 years totaling 152h 21m of downtime — averaging 0.3 incidents per month.

There were 8 Optus SMS outages since October 15, 2025 totaling 152h 21m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://status.sms.optus.com.au

Minor July 28, 2026

Messages using Sender IDs (Alpha Masks) to non-Australian destinations being Blocked

Detected by Pingoru
Jul 28, 2026, 09:43 PM UTC
Resolved
Jul 28, 2026, 11:52 PM UTC
Duration
2h 9m
Affected: Rest of the World
Timeline · 3 updates
  1. investigating Jul 28, 2026, 09:43 PM UTC

    We are aware of an issue with the handling of messages using Sender IDs (alphanumeric masks) to international (non-Australian) destinations. Some messages, sent to non-Australian mobile numbers, using a Sender ID like 'Name' rather than a MSISDN like +614######## are currently being blocked, our Dev team are investigating and a further update will be posted in 30 minutes. Regards, Optus SMS Support Team

  2. monitoring Jul 28, 2026, 10:52 PM UTC

    Our Development team has identified the root cause of the issue, and we are now seeing previously affected masked messages to non-Australian destinations being delivered successfully. Our team continues to monitor and work through the remaining impact to ensure all traffic is flowing normally and to prevent a recurrence of the issue. Any messages that were affected and are still required will need to be resent. Regards, Optus SMS Support Team

  3. resolved Jul 28, 2026, 11:52 PM UTC

    We are pleased to confirm that this issue has now been resolved. Since our last update, we have observed all traffic using registered Sender IDs to international destinations flowing successfully. If you are still experiencing issues with valid messages being blocked, please contact our Support team for assistance. Regards, Optus SMS Support Team

Read the full incident report →

Minor July 15, 2026

Delayed Message Delivery

Detected by Pingoru
Jul 15, 2026, 07:46 AM UTC
Resolved
Jul 15, 2026, 09:11 AM UTC
Duration
1h 25m
Affected: Australia
Timeline · 3 updates
  1. investigating Jul 15, 2026, 07:46 AM UTC

    We are currently experiencing elevated error rates when attempting to queue messages to the carrier. Customers may see delays in message deliverability. Our team is investigating the issue and working to restore normal service. We will provide another update as soon as more information becomes available.

  2. monitoring Jul 15, 2026, 08:12 AM UTC

    The issue causing delays in message delivery has been resolved, queued messages have now been sent and delivery has returned to normal levels. If you are still experiencing issues please contact the support team. Regards, Optus SMS Support Team

  3. resolved Jul 15, 2026, 09:11 AM UTC

    We are happy to report that messages have continued to flow normally, and we are now resolving this incident. If you experience any further issues, please contact us at [email protected]. Regards, Optus SMS Support Team

Read the full incident report →

Minor May 8, 2026

Degraded Performance

Detected by Pingoru
May 08, 2026, 01:34 AM UTC
Resolved
May 08, 2026, 03:13 AM UTC
Duration
1h 38m
Affected: Campaign ManagerMobile StudioWeb2SMSMobile ReportCompany Admin
Timeline · 5 updates
  1. investigating May 08, 2026, 01:34 AM UTC

    We are currently investigating an issue affecting Optus SMS Suite website. Some users may experience slow loading times or intermittent 504 Gateway Timeout errors. Our team is working to identify the cause and restore normal performance as quickly as possible. We will provide further updates as more information becomes available. Regards, Optus SMS Support Team

  2. investigating May 08, 2026, 01:52 AM UTC

    We are continuing to investigate this issue.

  3. monitoring May 08, 2026, 01:53 AM UTC

    A fix has been implemented and we are monitoring the results.

  4. monitoring May 08, 2026, 01:53 AM UTC

    We have identified and mitigated the cause of the earlier issue affecting access to the web application, where some users experienced slow loading times and intermittent 504 Gateway Timeout errors. Mitigation changes have been applied and platform performance has returned to normal. Messaging APIs and message delivery services were not impacted during this incident. We are continuing to monitor the platform closely. If you experience any further issues, please contact us at [email protected]. Regards, Optus SMS Support Team

  5. resolved May 08, 2026, 03:13 AM UTC

    The earlier issue affecting access to the Optus SMS Suite web application has now been resolved. Messaging APIs and message delivery services were not impacted during this incident. We will continue to review additional preventative measures as part of our post-incident follow-up. If you experience any further issues, please contact us at [email protected]. Regards, Optus SMS Support Team

Read the full incident report →

Notice March 27, 2026

Delayed delivery - SMS Messages

Detected by Pingoru
Mar 27, 2026, 12:13 AM UTC
Resolved
Mar 27, 2026, 01:13 AM UTC
Duration
1h
Affected: Campaign ManagerAustraliaMobile StudioRest of the WorldMobile Gateway (API)Two Factor AuthenticationSingle Sign On (SSO)Email2SMSSubscriptionsWeb2SMSSending HoursMobile ReportCompany Admin
Timeline · 3 updates
  1. investigating Mar 27, 2026, 12:13 AM UTC

    We are experiencing delays in SMS message delivery, we are investigating the cause of the delay and will work to remedy the issue as soon as possible. Messages will queue within our systems for delivery once any queues have cleared. A further update will be posted shortly. Regards, Optus SMS Support Team

  2. monitoring Mar 27, 2026, 12:52 AM UTC

    The issue causing delays in message delivery has been resolved, queued messages have now been sent and delivery has returned to normal levels. If you are still experiencing issues please contact the support team. Regards, Optus SMS Support Team

  3. resolved Mar 27, 2026, 01:13 AM UTC

    We are happy to report that messages have continued to flow normally, and we are now resolving this incident. Regards, Optus SMS Support Team

Read the full incident report →

Minor February 26, 2026

Campaign Manager – Large Campaign Processing Delays

Detected by Pingoru
Feb 26, 2026, 01:07 AM UTC
Resolved
Mar 02, 2026, 11:05 PM UTC
Duration
4d 21h
Affected: Campaign Manager
Timeline · 4 updates
  1. investigating Feb 26, 2026, 01:07 AM UTC

    We are currently investigating an issue affecting some large Campaign Manager sends, where campaigns may pause during processing and not progress as expected. A temporary workaround (pausing and resuming the campaign) is available while we investigate the root cause. Our technical team is actively working to identify and resolve the underlying issue. We will provide further updates as our investigation progresses. If you are experiencing related issues or require assistance, please contact us at [email protected].

  2. monitoring Feb 27, 2026, 01:49 AM UTC

    We have identified the cause of the issue affecting some large Campaign Manager sends, where campaigns may pause during processing. Mitigation changes have been deployed to production to reduce the likelihood of campaigns becoming stuck. We are continuing to monitor the platform closely. If you experience any further issues, please contact us at [email protected].

  3. monitoring Feb 27, 2026, 01:51 AM UTC

    We are continuing to monitor for any further issues.

  4. resolved Mar 02, 2026, 11:05 PM UTC

    The issue affecting some large Campaign Manager sends has been mitigated. Changes have been deployed to production to reduce the likelihood of campaigns becoming stuck, and an automated monitoring process has been implemented to detect and safely resume stalled campaigns where required. We have not observed any new instances since the mitigation was applied and will continue to monitor performance. If you experience any further issues, please contact us at [email protected].

Read the full incident report →

Minor February 9, 2026

Delivery Issue Australia - Telstra

Detected by Pingoru
Feb 09, 2026, 02:56 AM UTC
Resolved
Feb 09, 2026, 03:11 AM UTC
Duration
14m
Affected: Australia
Timeline · 3 updates
  1. investigating Feb 09, 2026, 02:56 AM UTC

    We are investigating a delivery issue via Telstra Australia. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts If you are experiencing any issues please reach out to us. Regards, Modica Support Team [email protected]

  2. monitoring Feb 09, 2026, 03:04 AM UTC

    We have not detected any delivery issues to Telstra through our connections.

  3. resolved Feb 09, 2026, 03:11 AM UTC

    We have observed no issues in our Telstra traffic. If you have any issues reach out to our support team. Regards, Modica Support Team [email protected]

Read the full incident report →

Notice October 15, 2025

Campaign Manager - Upload List Error - Work-around available

Detected by Pingoru
Oct 15, 2025, 06:07 PM UTC
Resolved
Oct 16, 2025, 09:25 PM UTC
Duration
1d 3h
Affected: Campaign Manager
Timeline · 4 updates
  1. investigating Oct 15, 2025, 06:07 PM UTC

    We are aware of an issue with our Campaign Manager application. Customers may be receiving errors when trying to upload a list while creating a new campaign, "An error has occurred creating quick campaign!" Work-around; Please note that Lists can still be uploaded in the Lists tab in the application and can then be used when creating a new campaign. Our Dev team are investigating, we will post again once we have any updates Regards, Optus SMS Support Team

  2. identified Oct 15, 2025, 10:29 PM UTC

    Our team have identified the cause of the issue and are working to resolve it. Please continue to use the work-around i.e. please upload your Campaign List in the Lists tab prior to creating your campaigns. Anyone using existing lists will not be affected by todays issue. Regards, Optus SMS Support Team

  3. monitoring Oct 16, 2025, 12:02 AM UTC

    Our Technical team have implemented a fix and we have successfully tested uploading lists to Campaign Manager when creating a new Campaign. Clients are once again able to upload their Campaign List in the same step as creating the Campaign, or, you can upload the list first and then use the existing list when creating future Campaigns. We appreciate your patience and hope the workaround didn't cause you any inconvenience while we worked to resolve this issue. Please contact support if you're still experiencing issues. Regards, Optus SMS Support Team

  4. resolved Oct 16, 2025, 09:25 PM UTC

    We have seen no further issues and are resolving this incident.

Read the full incident report →

Notice October 15, 2025

API Messaging Outage

Detected by Pingoru
Oct 15, 2025, 04:12 AM UTC
Resolved
Oct 15, 2025, 04:48 AM UTC
Duration
36m
Affected: Campaign ManagerMobile Gateway (API)Email2SMSWeb2SMS
Timeline · 2 updates
  1. monitoring Oct 15, 2025, 04:12 AM UTC

    Hello Team, Our engineering and development teams have deployed a fix for the issue affecting message delivery. Both production environments are now operational, and normal message flow has resumed. Outage Duration: 16:22 – 16:52 NZDT (UTC+13) 14:22 – 14:52 AEDT (UTC+11) There was no message loss during this period; messages were only subject to delayed processing. We continue to monitor the system to ensure stability. Kind regards, Modica Support Team.

  2. resolved Oct 15, 2025, 04:48 AM UTC

    Hello Team, We are now resolving this incident as there have been no further issues identified since the fix was deployed. Message delivery has continued without interruption. Outage Duration: 16:22 – 16:52 NZDT (UTC+13) 14:22 – 14:52 AEDT (UTC+11) There was no message loss during the outage window, only delayed processing. Continuous monitoring has confirmed that all systems are operating normally. Kind regards, Modica Support Team

Read the full incident report →