But after a bit of training, POPFile's errors will be few and far between. Time to discover an alternative way to open and re-classify a specific message in POPFile.
Using a special header inserted by POPFile as it categorizes mail, you can go o any message directly. First, we need to make sure POPFile does indeed insert this header:
- Open the POPFile user interface.
- Go to the Configuration tab.
- Make sure X-POPFile-Link Header is On under Message Text Insertion.
- If it is not, use the Turn On button.
Now all it takes to go to a message in POPFile from the same message in your email client is a bit of copy and paste:
- View the source of the message in your email program.
- Look for a line starting with "X-POPFile-Link:" in the headers.
- Highlight the URL following it.
- The URL is enclosed in '<>' brackets.
- Typically, it looks like "http://localhost:8080/jump_to_message?view=popfile1850=1.msg".
- Press Ctrl-C.
- Open a new web browser window.
- Highlight the URL in the browser window's address bar.
- Press Ctrl-V.
- The address bar should now point to the X-POPFile-Link URL.
- Press Return.
Now you can easily find out all about what made POPFile classify the message in exactly the way it did, and you can easily re-categorize it, too.

