O365 - Email/Outlook
| 2026-10-05 | Status | Description |
|---|---|---|
| 04:00 PM |
|
Active: - Users may intermittently be unable to access their calendars in Outlook on the web and the new Outlook desktop client. As a workaround, impacted users can access their calendar through Microsoft Teams. - Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. - Users may be unable to update calendar delegates in the classic Outlook desktop client. |
| 03:59 PM |
|
Resolved: - Users may have seen unwanted add-ins appearing automatically across all Outlook clients. |
| 07:19 AM |
|
Active: - Users may intermittently be unable to access their calendars in Outlook on the web and the new Outlook desktop client. As a workaround, impacted users can access their calendar through Microsoft Teams. - Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. - Users may be unable to update calendar delegates in the classic Outlook desktop client. - Users may see unwanted add-ins appearing automatically across all Outlook clients. |
| 2026-10-02 | Status | Description |
|---|---|---|
| 03:53 PM |
|
Active: - Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. - Users may be unable to update calendar delegates in the classic Outlook desktop client. - Users may see unwanted add-ins appearing automatically across all Outlook clients. |
| 03:52 PM |
|
Resolved: - Users’ email messages may not have been quarantined and failed to be stored in the quarantine folder. |
| 08:12 AM |
|
Active: - Users’ email messages may not be quarantined and might fail to be stored in the quarantine folder. - Users may be unable to reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. - Users may be unable to update calendar delegates in the classic Outlook desktop client. - Users may see unwanted add-ins appearing automatically across all Outlook clients. |
| 08:11 AM |
|
Resolved: - Users may have been unable to search for email in Outlook desktop and Outlook on the web. |
No Issue
Outage
