Function said_ham 

pub fn said_ham(card: &Card) -> bool

Whether you said the message on card is not spam, here, on another device or in another mail client, so that the Porch keeps your filter’s word and your provider’s off it for good: the $NotJunk keyword without $Junk in its file name (kept by each sync: maildir::keywords_of); else every device’s label log, whose newest entry about this message says so.