No one company is immune to an attack and no one knows that better than Microsoft. So, when a giant spam flood was able to bypass Microsoft’s Outlook and Hotmail spam filters resulting in a plethora of unwanted advertisements, the software giant was nimble enough to quickly fix the issue.

It all started on the night between May 31 and June 1 and slowly escalated until it reached its peak. Then Microsoft jumped into action.

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Angry users flocked to show their annoyance on Reddit and Twitter, and Microsoft started an incident response event on the company’s Office 365 Server Status page to investigate the issues.

The problems went on for around 17 hours according to users. As expected, annoyed users posted messages of frustration on social media, ensuring Microsoft and their friends and followers knew of the problems.

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After a few hours, the company did find something wrong and applied a quick patch to mitigate the spam problem and later during the day applied a permanent fix to address the issue for good.

“One will provide short term relief preventing spam reaching your inbox,” Microsoft officials said. “The second will be a longer term fix which should stop spam reaching our infrastructure,” the company explained.

Microsoft’s status page today showed everything is up to normal now and running correctly.

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