For the past 3 days I am unable to sync messages on my PC using Windows Live Mail, I keep getting the error message;

Unable to send or receive messages for the Hotmail.co (*********) account.

Server Error: 0x80072EFE
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x80072EFE

[Original title: Windows Live Mail error]