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Microsoft outage was networking, not DNS, and took 20 hours to fix

Engineers moved legacy Exchange systems to Azure in a forward fix, which slowed recovery.

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Gergely OroszLead source
After 20 hours, the outage finally being mitigated Talking with Microsoft devs, the issue was NOT DNS (like many guessed), but it WAS networking I'm told the fix took so long because it had to be a forward fix... moving stuff from the legacy Exchange system over to... 🥁 ...drumrol... 🥁 Azure!! (impressive)
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How the headline evolved

  1. Microsoft outage was networking, not DNS, and took 20 hours to fix

  2. Microsoft outage was networking, not DNS, and took 20 hours to fix

  3. Microsoft Outlook outage was networking, took 20 hours to fix, sources say

  4. Microsoft says Outlook outage was networking, took 20 hours to fix

  5. Microsoft says Outlook outage was networking, not DNS, and took 20 hours

  6. Microsoft says 20-hour Outlook outage was networking, not DNS

  7. Microsoft says 20-hour outage stemmed from networking, not DNS

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