X-Spam-Flag filter
An X-Spam-Flag filter will catch only messages whose hits percentage meets or exceeds the 50% threshhold currently used by NC State. It will function only when the X-Spam-Flag header has a value of YES. Before you construct a spam filter, be sure to set up a spam folder in the Inbox of your e-mail client so that you can retrieve any legitimate messages caught by the filter.
NOTE: If you have already set up this type of filter for the SpamAssassin software previously used at NC State, you do not need to add a new one for PureMessage.

To construct a spam filter based on the PureMessage X-Spam-Flag header:

1. Open Entourage.
2. From the Tools menu, select Rules.
3. Select the IMAP tab.
4. Select New.
5. Give the rule a name, e.g., spamflag.
6. Under If, select the Execute pull-down menu.
7. Choose if any criteria are met.
8. From the next pull-down menu, select Specific header.
9. In the first text box, type: X-Spam-Flag.
10. From the second pull-down menu, select contains.
11. Type Yes in the text box.
12. Under Then, from the first pull-down menu, choose Move Message.
13. From the second pull-down menu, select your spam folder.
14. Make sure the Enabled check box is marked.
15. Select OK.

X-Spam-Level filter
An X-Spam-Level filter can be used to catch messages whose hits percentage is less than the 50% threshhold. You might want to create one if you feel that 50% is too high (doesn't catch enough spam). If you choose a threshhold that is not a multiple of 10 (e.g., 45%), you will need to create two of these filters instead of one. Before you construct a spam filter, be sure to set up a spam folder in the Inbox of your e-mail client so that you can retrieve any legitimate messages caught by the filter.
WARNING: Be very careful if you create an X-Spam-Level filter. The lower the hits percentage you choose for filtering, the more likely you will mistakenly catch legitimate mail and send it to your spam folder.

To construct a spam filter based on the PureMessage X-Spam-Level header:

1. Open Entourage.
2. From the Tools menu, select Rules.
3. Select the IMAP tab.
4. Select New.
5. Give the rule a name, e.g., spamlevel.
6. Under If, select the Execute pull-down menu.
7. Choose if any criteria are met.
8. From the next pull-down menu, select Specific header.
9. In the first text box, type: X-Spam-Level.
10. From the second pull-down menu, select contains.
11. Type in your chosen hits percentage using the letters X and/or I:
    • If your percentage is a multiple of ten, type a number of X's equal to the tens digit of the percentage.
      For example, for 60%, you would type 6 X's (upper case):
      XXXXXX
    • If your percentage is not a multiple of ten, type a number of X's equal to the tens digit followed by a number of I's equal to the ones digit.
      For example, for 65%, you would type 6 X's and 5 I's (upper case):
      XXXXXXIIIII
      NOTE: In this case, you will need to create a secondary filter (see below).
12. Under Then, from the first pull-down menu choose Move Message.
13. From the second pull-down menu, choose your spam folder.
14. Make sure the Enabled checkbox is marked.
15. Select OK.

If your hits percentage is not a multiple of 10, you will need to create a secondary filter:

1. From the Tools menu, select Rules.
2. Select the IMAP tab.
3. Select New.
4. Give the rule a name different from the one above, e.g., spamlevel2.
5. Under If, select the Execute pull-down menu.
6. Choose if any criteria are met.
7. From the next pull-down menu, select Specific header.
8. In the first text box, type: X-Spam-Level.
9. From the second pull-down menu, select contains.
10. Type in a number of X's equal to one more than the tens digit of your chosen hits percentage.
    For example, for 65%, you would type 7 X's (upper case):
    XXXXXXX
11. Under Then, from the first pull-down menu choose Move Message.
12. From the second pull-down menu, choose your spam folder.
13. Make sure the Enabled checkbox is marked.
14. Select OK.

X-Virus-Detected filter
By using an X-Virus-Detected filter and creating a virus folder in the Inbox of your e-mail client, you can retrieve legitimate messages that arrived with virus-laden attachments that were later removed by PureMessage. Be sure to set up your virus folder before you construct a virus filter.

To construct a virus filter based on the PureMessage X-Virus-Detected header:

1. Open Entourage.
2. From the Tools menu, select Rules.
3. Select the IMAP tab.
4. Select New.
5. Give the rule a name, e.g., virus.
6. Under If, select the Execute pull-down menu.
7. Choose if any criteria are met.
8. From the next pull-down menu, select Specific header.
9. In the first text box, type: X-Virus-Detected.
10. From the second pull-down menu, select contains.
11. Type yes in the text box.
12. Under Then, from the first pull-down menu choose Move Message.
13. From the second pull-down menu, choose your virus folder.
14. Make sure the Enabled checkbox is marked.
15. Select OK.

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