Dear Customer,
We are writing to inform you that we will be performing emergency maintenance work on Telstra Integrated Messaging.
Description: [Release of new Software version with patches and enhancements.]
Maintenance start time: [Insert day/month/year-time - eg: 27/03/2018 - 23:00] AEDT/AEST
Maintenance end time: [Insert day/month/year-time - eg: 28/03/2018 - 06:00] AEDT/AEST
Impact: [Insert affected services and downtime, if applies - we need to ensure we include in here the behaviour of the platform i.e. Incoming messages will continue to be delivered, outgoing messages will be queued etc and for how long i.e 30 minutes and include the following apology statement: We apologise for any inconvenience this may have caused and ....]
We will email you at the beginning and end of the maintenance period.