bug 3740: ignore legit bounces from Yahoo, if the correct rDNS and From are used
bug 3740: ignore legit bounces from Yahoo, if the correct rDNS and From are used

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@43549 13f79535-47bb-0310-9956-ffa450edef68

apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin