San Francisco's announcement may take some of the sting out of the outage that hit Microsoft's hosted email customers recently. Several outages occurred last week between Tuesday and Thursday, leaving customers with hours of downtime.
Walton, though, said the outages didn't worry him.
"We see what happened last week with the Microsoft outage as a point of why we made this decision," he added. "We lost no messages. We were in close contact with Microsoft. When the issue was resolved and we started receiving email again, since no email was lost, we saw it as a delay of four hours."
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