Email problem-SMTP server name not known

I cant send a simple mail from my pc. I dont know smtp server name and port of my ISP. Cant I use any other smtp server and port to send my mail. Wud u pls tell me the name as well as the port of such smtp server. Can I use yahoo's smtp server? What is the name n port of yahoo?

hi,

if you are trying to send outgoing mail why not use the one provided by most ISP's for free. Also if you have a hosting package with some company (website or just emails) you should also be able to send mail using their smtp details.