I suspect that Livemail was an online system. If you're using Outlook then your system is offering up the messages directly to an outgoing mail server (SMTP). For this to work, you probably need to use the outgoing server that is available from your internet service provider. Have a look at their page and set up the outgoing mail server as suggested by them. All the incoming settings can stay as is, but outgoing mail is often linked to ISP registered users only to avoid spammers using innocent servers.