Another large cloud-service provider, Yahoo, has been hit by a service delivery problem.
Two of its most popular services, Yahoo Mail and the Flickr photo service, were down for several hours April 28 for an undisclosed number of users, the Sunnyvale, Calif.-based company said.
The company did not say how many users were affected when its email service, which has been up and running since 1996, was down for that period of time.
Yahoo posted this notice on Twitter at about 9 a.m. PDT April 28: "For some users @Flickr is currently slow/inaccessible. We're fixing the issue to restore functionality ASAP--apologies for any inconvenience."
A few minutes later, the company posted this note: "This AM @Flickr was inaccessible/slow for some users. We worked quickly to fix & Flickr is now fully functional. Thanks for your patience!"
Yahoo posted this notice on Twitter a couple of hours later: "Yahoo Mail is currently inaccessible to some users. We are working to correct the issue and restore all functionality immediately."
Yahoo had yet to post an all-clear notice about its email service by 3:30 p.m. PDT. By that time, Yahoo Mail had been down for more than 6 hours for some users.
Even though Yahoo's services have been eclipsed in many areas by competitors Google and Microsoft, Yahoo Mail still ranks among the world's largest cloud-based email services. In October 2010, Yahoo reported that its number of email users was 273 million.