After upgrading to Sequoia 15.4 (new AppleMail) many incoming mail messages (previously good) are now put into the junk folder and even if instructed by SPAMSIEVE to be considered as GOOD MESSAGES they go into the spam folder. Any suggestion?
We have not heard any other reports of filtering changes with macOS 15.4. The first step in troubleshooting this is to see whether SpamSieve was actually the reason that these messages went to Junk. Please see this page.