I wouldn't have such a problem with its false positive rate if they at least learned from them better. It doesn't seem to matter how many times I mark an email

I wouldn't have such a problem with its false positive rate if they at least learned from them better. It doesn't seem to matter how many times I mark an email as "Not Spam". The next day an email from the same sender from the same server with the same Received: path will land right back in Spam again. I realize that gmail can't immediately globally unblock based on "Not Spam" reports (otherwise spammers would ruin things by marking their own bulk mail) but could they at least apply them to my mailbox? I guess adding the senders to my address book would help, but it seems like a silly thing to have to do. I already told it that a message is "Not spam", can't it take it from there?