Inbound/Webmail Microsoft Issues Thursday November 12 (Ongoing)

Microsoft users and those sending mail to Microsoft-hosted mailboxes are seeing significant issues right now. The issue is affecting multiple services, including email, starting somewhere around 10:30 am US central time on Thursday, November 14th. This is affecting both consumer (Outlook.com/Hotmail) and business (Microsoft 365) email platforms. Most or all users seem to be unable to access webmail, and inbound email appears to be delayed.See the screenshot above from Groups.io’s coverage of this issue, showing when the issues started to appear.Sparkpost has put out an incident notice as well, find that here. They note: Since about 17:30 UTC on November 12, Microsoft’s mail servers have been answering a large share of delivery attempts with temporary errors. This affects Outlook.com, Hotmail, Live, MSN and Office 365 recipients. The errors include “451 4.7.0 Temporary server error”, “421 4.3.2 The maximum number of concurrent server connections has exceeded a limit” and “451 4.7.700…

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