Using New Outlook on Windows for professional communication and productivity
Hi,
I’m sorry you’re still unable to access your email, especially after trying the steps suggested by support.
The difficulty accessing your mailbox and receiving messages may be related to the Microsoft 365 service incident MO1550821. However, I cannot confirm from the information provided whether your account is affected by this incident or whether the error when adding it to your iPhone has a separate cause.
In the service health update dated November 13 at 18:01 GMT+7, Microsoft reported progress in restoring affected infrastructure in the Asia Pacific region, including improvements in mailbox access and delayed email processing. Some users may still experience intermittent issues while recovery work continues. This update did not provide a confirmed time for full restoration.
I’ve included a screenshot of that update below for your reference:
If this is a work or school Microsoft 365 account, your IT administrator can check the latest Service health updates and whether the incident is listed for your organization.