• From the menus, pick Options → Inbound Email
• Select the System Tab
• Note the original POP server in the 'POP Server' box, you will need it below.
• Replace the contents of the POP Server box with 127.0.0.1
• In the Username box, put the original POP server followed by a colon : to the front of the username that is already in the box, e.g, if username was username and original POP server was pop.myisp.net, then the box should contain

  pop.myisp.net:username
  

• Click OK

If your ISP requires SMTP authentication for sending mail, you will also have to configure your username and password as follows:

• From the menus, pick Options → General
• Select the System Tab
• Click the SMTP Authentication button
• Select login with a username and password
• Uncheck the use POP username and password box
• Fill in your real username and password
• Click OK, Click OK

The easiest method of setting up filters for POPFile's classification is to turn on the X-Text-Classification insertion on POPFile's Configuration page, then retrieve some classified mail. That will put mail in your inbox with the headers you want in the mail.

• Select a piece of mail you just received via POPFile
• From the menus, pick Message → Filters → Add Kill or Watch Filter (your choice)
• In the Add Email Filter box that pops up, use the Paste Field button to locate the X-Text-Classification link you want to filter on.
• Make whatever other selections you want and save the filter.