2006-08-07

New trend in Spam messages

I have noticed recently that spammers are sending numerous HTML formatted messages containing articles from popular magazines contained within HTML comment tags.

This seems to be an effort to thwart spam filters that examine messages for content. Since these messages do contain actual content with many ham words (words that are indicated not spam by filters) and low instances of spam words, some filters will probably let them pass.

I am using Spam Assassin to filter mail and it appears to be catching these; but, until I looked at the message source, I could not figure out why there were no bodies to some of the messages (only headers and a subject). This does not seem to be effective marketing since: 1) at least some commonly used filters are catching them, 2) there is not enough content in many of them to indicate what is being sold.

The other problem with these messages - from a recipient's point of view - is that they are harder to submit to SpamCop. If you use SpamCop and want to submit a message that does not appear to have a body, check its message source. If there is HTML code in the message source, submit it in its entirety.

This is how the mail servers would see the message and for mail servers and clients that use message hashes to block spam, this is the only way for them to accurately filter these messages.

Rules

I moderate all comments and reserve the right to remove any post that I deem inappropriate.

Since I support free speech, I do not intend to remove any posts except for spam, which contributes nothing to a discussion.

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