Setting your client (Outlook ...etc) to retrieve/send emails with usually involves the following data. If unsure about what your values are, ask your ISP or web hosting company. Please replace the example values with your actual values.

POP_Login: YourEmail@YourDomain.com
POP_Password: YourPassword
POP server: mail.YourDomain.com.com or often mail.YourISPs_POP_Server.com

SMTP server: mail.YourDomain.com.com or often mail.YourISPs_SMTP_Server.com

Additionally, as a SPAM reducing measure, many ISPs nowadays require you to use "SMTP authentication" to send mail.
Usually this will be the same information as POP login (i.e same userid/password as the POP_Login and POP_Password).

So your tasks is to simply fill the appropriate value in your email client.