The mail delivery delay was confirmed resolved following no additional issues. Please contact the support team at support@symprex.com for any questions.

An issue commenced at approximately 08:33 UTC on 14/6/26 due to a customer based service email address sending large volumes of email to the SMTP service.

This issue continued until 02:30 UTC on 15/6/26, and resulted in 2.1 million emails being sent through the SMTP systems.

The underlying services experienced increasing delays due to Exchange online timeouts, peaking at around a 2 hour time delay.

We continue our investment in automated handling of these incidents to minimise impact in future, and continue to monitor the existing incident.