Apple has confirmed an outage affecting iCloud Mail and iCloud Web Apps.
Users may be unable to log into their iCloud account to retrieve mail or sign in to iCloud.com.
----- iCloud Mail - Outage Today, 2:31 PM - ongoing Some users are affected Users may be unable to send, receive or access mail. ----- iCloud Web Apps (iCloud.com) - Issue Today, 2:31 PM - ongoing Some users are affected Users may be unable to sign in. -----
You can check the status of these issues by visiting Apple's System Status page at the link below.