I cannot block daily spam and porn requests. Spam does not respond to "STOP".

There is no easy fix. This URL is helpful: https://blog.thunderbird.net/2024/09/thunderbird-and-spam/ But the thunderbird solution requires periodic 'training' to it. It is not a set-an-forget system. Also, check your email provider's website,as many email providers also provide spam tools. For spammers with some consistent patterns, you can set up your own filters to delete them. Finally, there are third-party tools, such as mailwasher that can do a lot to reduce spam.