The case of the fractured firewall: Outlook for Mac causes DoS attacks

Preface: A big thank you to Patrick Fergus for his efforts and this article! He worked diligently with Microsoft support for several months to troubleshoot an issue that was effectively causing an internal Denial of Service (DoS) attack against his company’s firewall. The culprit? Outlook for Mac. And while working with Patrick, Microsoft discovered a second major issue with excessive open files caused by the licensing system in Office for Mac. His work contributed to . . .

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