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Troubleshooting / FAQ
Manual > Setting up
Spamfire > Spamfire Preferences
> The Filter List > Negative
Negative Score Filters
If there are messages you want Spamfire to accept, you can create
filters that apply a negative score to messages that trigger them.
A negative score filter can lower a message's spam
score so that Spamfire will accept the message. This is a very powerful
way to avoid false positives
and boost Spamfire's accuracy.
- You can create filters with large negative scores, like -300, to ensure
that certain messages are always accepted.
- Or you can create filters with smaller negative scores, like -40,
to make Spamfire more likely to accept a message, but still reject the
message if other filters bump its spam score quite high.
See How to Make a Filter.
Some useful negative score filters
- Check messages for the names of your company's products.
- Check messages for keywords related to topics you want to hear about.
- If you do business using eBay or PayPal or other electronic transaction systems, check messages for text patterns that appear in the messages you receive when new orders come in.
- Check messages for your physical mailing address or phone number.
These messages might be from Web sites where you have placed orders.
It is unlikely that a spammer would ever get hold of your mailing address
or phone number.
- Check messages for the quoted text of your outgoing email signature.
Someone replying to a message you send might quote your entire message,
including your email signature.
- Check messages for special email "passwords." For example,
when giving out your email address to new friends, you could tell them
to put the text "--friend--" in the subject and have a filter
that will accept those messages.
- If you have Web forms that are emailed to you, check messages for
certain subjects or hidden text fields.