Microsoft's "old" cloud is showing its age, with an email outage affecting customers for the second time in a month.
Exchange Online within Microsoft's Business Productivity Online Suite is being replaced by Office 365, which features what is supposed to be a more resilient infrastructure. But customers are being moved to the new service slowly, and those remaining are suffering occasional outages.
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Customers were complaining today in a Microsoft Online Services support forum thread about trouble with email.
Connection problems were experienced with with the Outlook client and Outlook Web Access.
"OWA says 'Service unavailable.' Outlook says 'Trying to connect.' On the phone with Microsoft now," one customer writes.
Users also wrote that it took Microsoft more than two hours to update its service health dashboard to reflect the outage, despite a promise to move quicker after an outage last month.
"In their last email regarding the June 22nd outage they promised that in the future, the dashboard would reflect more in 'real time', so much for that promise," one customer writes.
The @MSonline Twitter feed reported that service was restored about an hour ago.
Microsoft has said it's not able to move all customers from BPOS to Office 365 immediately, plus not every customer would want to do so right away because the migration is potentially disruptive. Then again, so is not being able to access email.
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