Some O365 Exchange users may be unable to access tbeir mailboxes. Microsoft has posted a service advisory for this issue. They are working towards a resolution
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Can't access mailbox via any protocol
EX209929, Exchange Online, Last updated: April 20, 2020 5:28 PM
Start time: April 20, 2020 4:48 PM
Status
Service degradation
User impact
Users may experience 500 errors when attempting to access their mailbox via any protocol.
Latest message
Title: Can't access mailbox via any protocol
User Impact: Users may experience 500 errors when attempting to access their mailbox via any protocol.
Current status: Our investigation indicates that there may be a code path failing within the service that could be causing impact. We're analyzing the recent service update and associated logs to verify if this is the source of the issue.
Scope of impact: This issue may potentially affect any of your users attempting to access their mailbox via any protocol.
1 comment:
Microsoft reports this was repaired around 2:40 AM. We have received confirmation from an affected user that they can now log in.
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