Created on 03-01-2006 12:00 AM
Description | Spam is not detected by Banned Word Spam Filter |
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Steps or Commands |
If spam email does not seem to be blocked or tagged by the Banned Word check, verify the raw content of the received email to see whether it presents the banned word using HTML. There are various ways to display text using HTML, which can result in bypassing the Banned Word filter. The screen capture below is an example of a spam email message shown within Outlook Express:
Looking at the details of the email, you can see the banned words "viagra", "valium" and "cialis", are actually split in half, and presented on the same line using HTML codes. <STYLE></STYLE> The FortiGate unit cannot detect the banned words when presented this way. Consider using an alternate SPAM detection method, such as FortiGuard AntiSpam. |
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