How/where do I find settings parameters? Such as Incoming and Outgoing (SMTP) mail server?

I had a major crash and reloaded OS (Win 7). Need to set up Outlook mail and need these data but don't know where to retrieve them. Actually, I want to recapture use of Live Mail.  I downloaded the Windows Essentials setup file to load the Live Mail files but was asked to input the parameters noted above . . . Account Type was POP3 but I didn't know the "Incoming mail server", the Outgoing mail server (SMTP). I assume the login data of User Name and password can be created as I wish.  My wife uses the ATT-Yahoo mail account in IE-10 and, in the past, I also received all e-mails to my account in my Live Mail account.  I deleted "my" e-mails in the Yahoo account and "her" e -mails in my Live Mail so my business files were in a special place.  I appear to have lost all of the past archived e-mails when the Crash occurred but, perhaps, when/if I can re-create Live Mail, they may return. I assume they were being saved in "the cloud." Alternatively, if necessary, I have re-reloaded Office 10 which includes Outlook and could use this as an alternative to the Live Mail.