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Information Resources & Communications

Tips for Desktop Spam Filtering

August 8, 2005

To: UCOP Users of Eudora 6 E-mail
From: Paul Weiss, Director, IR&C Technology Support Services

Everyone hates spam but you can do something about it! We'd like to remind you that if you use Eudora 6 for e-mail, you can filter messages according to your personal definition of spam. What happens is you actually "train" Eudora to recognize the types of messages you consider spam or "junk" and those you consider legitimate. Here's how:

-- When a spam message arrives in your In box , highlight it, open the Message drop down menu (or right click on the highlighted message), and click on Junk. Eudora then moves the message to the Junk folder.
-- When a legitimate message arrives in your Junk folder , highlight it, open the Message drop down menu (or right click on the highlighted message), and click on Not Junk Eudora then moves the message to the In box.

Over a few days of training, Eudora learns to categorize incoming messages based on various characteristics (i.e., subject, sender, key words) and drops into the Junk folder those messages you are likely to consider spam.

Stay vigilant though! The spammers are smart and use the same tools to figure out what messages are most likely to get through the filters. Regular training refines the accuracy of Eudora's spam filtering.
--Legitimate messages occasionally will land in your Junk folder. You should review your Junk folder daily so you don't miss an important message erroneously tagged as Junk. Mark legitimate messages as "Not Junk."
--Spam periodically will appear in your In box. Be sure to mark it as Junk--don't just delete it.
--If you have questions, consult with your departmental PC coordinator.

While you are busy training Eudora, IR&C is doing behind-the-scenes work to enhance the spam filtering process. We use server-based tools to assign scores to incoming messages and indicate the likelihood that recipients will consider the message spam. Eudora compares this score with the one you develop by training Eudora, and uses the highest score to filter spam into the Junk folder. As more tools become available, IR&C will update our spam filtering services and keep you informed as well.


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