Switching on Spam Filter

To switch on spam filtering for a mailbox:

  1. Click Domains shortcut in the navigation pane.
  2. Click the required domain name in the list.
  3. Click Mail in the Services group.
  4. Click the e-mail address you need.
  5. Make sure that Spam Filter is enabled: see whether the Spam Filter status shows On in the Info group. If it shows Off, ask your service provider to enable the spam filtering.
  6. Click Spam Filter.
  7. Select Switch on spam filtering checkbox.
  8. Click OK.
  9. Click Up Level to return to the mailbox management page.

Now all the incoming mail will be filtered on the server side. By default, spam filter does not delete spam mail, it only adds the "X-Spam-Flag: YES" and "X-Spam-Status: Yes" headers to the message, and "*****SPAM*****" text string to the beginning of Subject line of each message recognized as spam. These settings are fine if you prefer to filter mail with a filtering program installed on your local computer – once mail has been retrieved from your mailbox.

If you rely entirely on the Plesk server's spam filter, you may configure it so as to automatically delete the suspicious messages as they come. To configure the spam filter, follow the instructions below.