15/12/2021 07:42:00 AM (GMT)
Issue Reported : 14/12/2021 5:30:00 PM
Microsoft Reference : EX305387
Issue Status: RESTORED
Issue Description: Users’ Exchange Online outgoing messages are delayed or stuck in the Drafts or Sent Items folder after sending.
More info: Email that was stuck in the Drafts folder as well as some messages showing in the Sent folder were actually queued for delivery, but hadn’t been sent.
Scope of impact: This issue affected some users sending email through Exchange Online that were served through the affected infrastructure.
Final Update – 15/12/2021 07:42:00 AM: Microsoft completed the routing configuration change deployment resolving the underlying issue and confirmed with users that current messages and previously queued mail is being delivered as expected.