re :I'm getting blasted with phishing spam, roughly 30 bogus messages a day. I've a listing of filters of great length.

When you create filters for spam, you end up spending time creating hundreds of filters to deal with specific spam. The problem being spammers keep modifying what they use. The icons that often get used in Subject etc are not that simple to detect as they UTF data which bares no reembalnce to what you actually see. If you select email and use Ctrl+U to see Source view it may explain what I'm talking about. This link may help explain more: https://stackoverflow.com/questions/73070580/how-the-emoji-in-email-subject-line-is-decoded-to-this-utf-8b4pyf

Is there any reason why you have not set up Junk Controls to deal with junk/spam emails ? Thunderbird uses Bayesian filtering so it needs training. You do need to train the Junk adaptive controls to learn what is junk and also what is not junk. It ends up performing thousands of filtering options on your behalf. It takes a couple of weeks to get up to a good level. I find it works really well and therefore my filters deal with sorting out what good mail goes to what folder. I do have a couple of special filters designed to cope with a few more unusual spam emails particulary those using my name in the 'from' as they have been designed by spammer to get around filters.

Thanks for the response. Have no tangible reason for not setting up Junk Controls, now is pbly the time. Appreciate your help.