Split from this thread.

Not even close to enough information.

What happens if you try to send a message to yourself. Any error message?

Mine states this.....

Unable to send or receive messages for the Live.com (********-***) account.

Server Error: 0x800488A6
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x800488A6

Was working perfectly earlier today but now i'm getting this error.

Running Windows 10 & this account is running on Windows live mail 2012