I am in Europe since 2 days. Since I am there I have an issue sending email messages from both of my accounts: Charter.net (my default) and Outlook.com within Windows Live Mail 2012. Both accounts are setup correctly and according the advice from Charter and MS and at home, the accounts work perfectly.
Receiving Email is also no problem on both accounts.
I am using Windows 8.1 Update. There is one interesting thing: sending email from the MS email app in Metro works, though I think it uses the same account set-up Outlook.com in WLM 2012. I changed ports and other data like SSL etc. but nothing helps on both accounts . Is there any explanation for the behavior of WLM 2012 or the servers. I am totally puzzled.