Exchange Online status
Degraded
Service notices
- Some users may not see free/busy info shared between organizations using cross-tenant access policy in Exchange Online
Active incidents
Recent history
- Some users may have experienced errors or failures when accessing their mailbox via Outlook on the web
- Some users may be intermittently unable to send email messages to Outlook.com, Hotmail.com, or Live.com email addresses
- External users’ replies to encrypted email messages may not be delivered in Exchange Online
- Some users may see intermittent failures when accessing Exchange Online through Representational State Transfer (REST)
- Admins are unable to access the Exchange admin center (EAC)
- Some users' email messages from on-premises Exchange servers to Exchange Online may intermittently fail
- Some users' mailbox syncs may fail with an error in Exchange Online
- Some users' email with DocuSign URLs may not be delivered and may be quarantined due to URL reputation
- Some users’ email messages may not be quarantined and fail to be stored in the quarantine folder
- Some users may have been unable to access their mailbox via Exchange ActiveSync (EAS)
Source: Microsoft 365 service health.