Instruzction to set your navigator to send e-mail.

-Netscape 

Go on "option" menù near "bookmark" and clik on "Mail and News preferences"

Then go on "servers" and fill the spaces :
-Smtp server
-pop3 server
-pop3 name

Now select "identity" menù and fill the spaces:

-Name
-e-mail
-replay to:

Now you can clik on "ok" and navigate.

-To whom use "eudora" is enough to select in "options" menù "mail and news preferences" 
then "apparence" and select "use exchange client for mail and news".