Microsoft working to fix Exchange Online mailbox quarantine issue
Microsoft is working to resolve an ongoing Exchange Online issue that has been mistakenly quarantining customers' mailboxes since Sunday. The incident, tracked by Microsoft under EX1436407, began on July 19 and remained unresolved as of the most recent update Wednesday ev…
Intelligence analysis by Llama
Microsoft is working to resolve an Exchange Online issue that has been quarantining customers' mailboxes since Sunday. The issue began on July 19 and has not been resolved as of Wednesday evening.
Imagine you have a big box where you store all your emails. Sometimes, the box gets too full and the computer thinks it's a bad email, so it puts it in a special quarantine box. This is what's happening with some people's email boxes on Microsoft's Exchange Online service. Microsoft is working to fix the problem so people can get their emails back.
Analysis
A Recent Infrastructure Change Led to the Issue
Microsoft has linked the problem to a recent infrastructure change that caused excessive memory consumption, resulting in an out-of-memory condition that triggered the incorrect mailbox quarantines. This is a recurrence of a previous issue, tracked as EX1434354, and additional remediation steps were needed for full restoration.
The Impact on Users
Affected Exchange Online users have been experiencing issues receiving and sending emails and accessing their calendars. Microsoft has classified this as an incident, which usually involves noticeable user impact. The company has yet to disclose which regions are impacted by this ongoing issue or how many customers are affected.
Ongoing Cleanup and Remediation
An ongoing cleanup of the excess indexing data has progressed steadily, going from 66% complete as of Wednesday afternoon to 72% complete by Wednesday evening. Mailboxes are gradually being removed from quarantine to expedite recovery as memory levels are validated in different regions. Microsoft has yet to provide a completion timeline for full remediation, saying only that it would provide one in a future update.
Key points
- Microsoft is working to resolve an ongoing Exchange Online issue that has been mistakenly quarantining customers' mailboxes since Sunday.
- The issue began on July 19 and has not been resolved as of Wednesday evening.
- Affected Exchange Online users have been experiencing issues receiving and sending emails and accessing their calendars.
- Microsoft has linked the problem to a recent infrastructure change that caused excessive memory consumption.
- An ongoing cleanup of the excess indexing data has progressed steadily, going from 66% complete as of Wednesday afternoon to 72% complete by Wednesday evening.
Microsoft is working to resolve the issue and has made progress in cleaning up the excess indexing data. The company has also provided a timeline for full remediation, which will be shared in a future update.
The issue has been ongoing for several days, and Microsoft has yet to provide a completion timeline for full remediation. This could lead to continued disruptions for affected users.
