You would use the Mail app to do this,
Then follow the on screen input prompts. You will need the following information, either from you or your IT person,
Also, whether it uses an SSL conenction. Most cases yes.
Do you know if you're using an exchange server? Or just Pop3/IMAP? You can verify your account settings in Outlook to determine what kind of email you have.
Once you have those settings, just go to your mail application and follow the prompts, fill in the blanks with the information that you have.
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