There is an an asshole that sends spam almost every day from fake sending addresses. The only common text in all these emails part of the URL that he uses to scam people (https://abrikosen.hair), for example: https://abrikosen.hair/lxdfdpkf/ However, this text seems to be innacessible to the filters, because Thunderbird does not recognize any part of this text when I search or create a message filter with the body of the message. I'd like to know if there is a way to recognize and filter these messages using the "Message filters" tool. Thanks in advance.