How to Change a POP Email Server
Your POP email server settings tell your email client which server to access in order to find and download your email. If you switch email providers, or initially enter your server information incorrectly, you will need to change your POP server settings. Changing the settings takes just a minute or two in such popular email clients as Gmail, Outlook Express, Outlook 2003/2007 and Apple Mail.
Log in to your Gmail account.
Click "Settings" in the upper-right corner.
Click "Accounts and Forwarding."
Click "Edit Info" next to the email address in the "Check Mail Using POP3" section for which you want to update POP server settings.
Update the "POP Server" field and click "Save Changes."
Outlook Express or Outlook 2003
Go to "Tools" and then "Accounts."
Highlight the account you want to update and click "Properties."
Click the "Servers" tab.
Update the "Incoming Mail POP3" field with your new POP3 server settings and click "OK."
Go to "Tools," then "Account Settings."
Highlight the account you want to edit and click "Change."
Replace the information in the "Incoming mail server" field with your new POP server settings, then click "Finish."
Click "Mail," then "Preferences."
Click the "Accounts" button at the top.
Edit the "Incoming mail server" field with your new POP3 server settings.
Click the red circle in the upper left to close the window. You will be asked if you want to save your changes; click "Yes."