The Outlook.com outages were an embarrassment to Microsoft for multiple reasons, including a boast the week before that its Office 365 cloud-based service exceeded 99.9% uptime each of the last four quarters, and new attacks against rival Google Gmail in another run of its "Scroogled" campaign that kicked off Aug. 9.
Microsoft touts its own Outlook.com as an alternative to Gmail.
In fact, the latest Outlook.com outage was the second this year within weeks of a new Scroogled attack. In mid-March, about five weeks after a different Scroogled round, Microsoft's online email service went dark for about 15 hours.
Outlook.com has logged numerous interruptions in the last 60 days, including on June 14 and 27; July 1, 2, 3, 11, 12-14 and 25-26; and the event that began Aug. 14.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, on Google+ or subscribe to Gregg's RSS feed. His email address is email@example.com.
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