I built a new computer, and installed Windows live mail.  I have 4 accounts from diffrent sources - none of them yahoo or gmail.  I can recieve mail perfectly, but cannot send, it says the server cannot be found.  I have gone so far as to reattatch the old compter, export the settings to the new computer and - even though the old computer sends perfectly., the new one does not.  My internet provider (suddenlink) tells me it is a microsoft issue.  I have also looked at my router and my my virus software to see if there is a block.  Nothing!  Ideas?