Service update: global Microsoft 365 disruption

Updated 13 November 2026, 09:40 GMT

We are aware of the ongoing global Microsoft 365 service disruption, which is affecting Exchange Online email services for organisations worldwide.

For SITA customers, the impact is limited to email connectivity for some AIRCOM ServerPlatform Online (ASO) customers whose email integration uses Microsoft 365 / Exchange Online, and any email notifications currently being sent to our service desks. Since 17:59 UTC on 12 November 2026, these customers may be unable to establish connections. Our teams are monitoring around the clock and will restore full connectivity as soon as Microsoft’s service recovers.

All other SITA solutions are fully operational.

How to reach us: emails may be delayed while the Microsoft 365 disruption continues. All customers except those using SITA for Aircraft services, can reach us by:

Calling the SITA Service Desk (24/7) on your local number, listed below.

Using DigiHub, if you already use it.

Contacting your usual SITA account team by phone.

For those customers using SITA for Aircraft solutions, please contact us via one of the following:

Call the SITA Service Desk, 24/7h

  • Singapore +65 6548 2828
  • Montreal + 1 866 247 2661
Step 1

Find your local support number:

If your country is not listed, call
+1 514 282 6128
1 888 852 4466
Step 2

Specify your support service:

When calling, press a number (1–8) to reach the appropriate support team.
1 Airport Services
2 Desktop Services
3 Network & Communications Services
4 AIRCOM Services
5 Flight Operations Services
6 Messaging Services
7 All Other Services