Rather than relying solely on a regex, you may want to consider something that Thunderbird has an option for - disallowing e-mail from anyone not in an approved list of senders. I've got that option set and it has filtered down spam quite a bit.

HTH!

Useless trivia: In the 2004 Las Vegas phone book there are approximately 28 pages of ads for massage, but almost 200 for lawyers.

In reply to Re: Spam filtering and regular expressions by Popcorn Dave
in thread Spam filtering and regular expressions by Mr. Lee

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