Dear Customer,

We are writing to inform you that we will be performing maintenance work on the Telstra Integrated Messaging platform for NAB.

Description: 2 of 2 BCP Failover

Maintenance start time: Monday, 10th August 2026 - 21:00 AEST

Maintenance end time: Tuesday, 11th August 2026 - 01:00 AEST

Impact: There will be a brief 60-second window during which messages submitted to the system may be delayed by up to 60 seconds. This is expected to occur approximately 30 minutes after the change begins.

We will email you at the beginning and end of the maintenance period.

Dear Customer,

We are writing to inform you that we have completed the maintenance work on Telstra Integrated Messaging for NAB.

Change reference: PCR-7491

Description: 1 of 2 BCP Failover

Maintenance start time: 07th August 2026 - 21:00 AEST

Maintenance end time: 07th August 2026 - 22:38 AEST

Impact: 1min Outage - 07/08/2026 21:36:13 AEST to 21:36:55 AEST

Dear Customer,

We are writing to inform you that we will be performing maintenance work on the Telstra Integrated Messaging platform for NAB.

Description: 1 of 2 BCP Failover

Maintenance start time: Friday, 07th August 2026 - 21:00 AEST

Maintenance end time: Saturday, 08th August 2026 - 01:00 AEST

Impact: There will be a brief 60-second window during which messages submitted to the system may be delayed by up to 60 seconds. This is expected to occur approximately 30 minutes after the change begins.

We will email you at the beginning and end of the maintenance period.