Spam

DigitalPath officially provides anti-spam measures. We use a combination of spamassassin + qmail servers to identify, move and stop spam from hitting your E-mail box. Currently, any X-Spam-Status message with a number greater than 10 will be rejected by the system. If you subscribe to our Spam Filtering service, any message greater than a level 5 will be placed into a Spam folder. This Spam folder can be accessed through the IMAP webmail interface at webmail.digitalpath.net. These messages can be moved or deleted from the Spam folder to your Inbox. If you are using MS Outlook with IMAP, the spam folder will automatically appear in your folders.

Additional User control over Spam Filtering.
It is up to you, the customer, to either perform your own spam filtering with the assistance of third party software or to configure your own email client to make use of the spam identification tags that we provide as a courtesy.

For more information on spam, please see this Wikipedia article.


Overview

DigitalPath currently makes use of an Internet community-supported SBL/XBL ( Spamhaus) to reject a large amount of “obvious” spammers. Despite this, a lot of spam still gets through. We do not use some of the more aggressive RBLs (such as Spamcop) to avoid unnecessary false positives and blocking legitimate email.

We also use SpamAssassin with a well-trained Spam/Ham corpus additionally backed by DCC and custom rules written by ourselves and contributed by the SARE project to further identify spam. This spam identification has proven to be very accurate, but in the interests of not blocking legitimate customer, email we only “mark” these emails as spam and do not actively block them.

Making use of DigitalPath Spam Tagging

If you like, you may configure your mail client to use the spam tags added by our software to help identify and filter messages as you download them to your mail client.


* Microsoft Outlook
Fighting Spam: Outlook Configuration

   1. In Outlook, click on the Tools menu and select Rules and Alerts (or similar).
   2. Choose New Rule
   3. Make sure Start from a blank rule is selected.
   4. Choose Check messages when they arrive
   5. Click Next
   6. Choose with specific words in the message header in the top half of the window.
   7. In the lower half of the window, click on specific words.
   8. A window titled Search Text pops up. You should specify one of the following here:
          * X-Spam-Status: Yes
          * X-Spam-Level: ***** - Where the number of stars (*) is the spam score assigned to the email message. Five stars is default, you can adjust up or down to make spam filtering more or less aggressive respectively.
   9. Click on Add
  10. Click on OK to close out the Search Text window.
  11. Click on Next to move on to the next section: What do you want to do with the message?
  12. In the top half of the window, choose move it to the specified folder
  13. In the lower half of the window click on specified (part of move it to the specified folder)
  14. A window will pop up and allow you to choose a destination folder for your spam. Create or choose an already existing folder from this list.
  15. Click OK to return to the Rules Wizard
  16. Click Next
  17. Check any exceptions you’d like to use (in general there will be none).
  18. Click Next
  19. Choose a name for this rule. Either use the default or call it Spam
  20. Make sure Turn on this rule is selected.
  21. Click Finish

* Mozilla Thunderbird
Fighting Spam: Thunderbird Configuration

Thunderbird is a free email client made available by the Mozilla project. It is mature, fast and fairly secure. You can download Thunderbird here.
   1. Start up Thunderbird
   2. Create a folder specifically to store Spam in.
   3. Click on the Tools menu and choose Message Filters.
   4. From the window that pops up, choose New on the right.
   5. A window called Filter Rules will now open. Enter Spam as the Filter Name.
   6. Set For incoming messages that: to Match any of the following.
   7. From the dropdown on the left, choose Customize
   8. Enter X-Spam-Status and hit Add
   9. Enter X-Spam-Level and hit Add
  10. Click OK to return to the Filter Rules window.
  11. From the same dropdown, choose either X-Spam-Status or X-Spam-Level based on the following:
          * Choose X-Spam-Status if you want to only match on messages that our server has decided are spam.
          * Choose X-Spam-Level if you want to only match on messages with a “spam rating” that you define. This lets you adjust which messages are marked as spam if too many or too few messages are being tagged by default.
  12. Leave the center dropdown as contains and change the third column to:
          * Yes if you chose X-Spam-Status above.
          * ***** if you chose X-Spam-Level above. You may increase or decrease the number of stars here to make spam detection less or more sensitive respectively.
  13. In the lower half of the window (titled Perform these actions), choose Move Message to from the left dropdown.
  14. From the right dropdown, choose the folder you created in Step #2 above or any folder where you want to place your spam messages
  15. Click OK to exit from the Filter Rules menu.
  16. Click on the X to close out the Message Filters window.
  17. Your rule should now be live!


As Outlook Express does not support filtering based on envelope headers, it is unable to make use of our spam tags. Please consider moving to a more full-featured email client.

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