bug 4565: deal with new Yahoo hostname convention which caused FORGED_YAHOO_RCVD fps
bug 4565: deal with new Yahoo hostname convention which caused FORGED_YAHOO_RCVD fps

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@280056 13f79535-47bb-0310-9956-ffa450edef68

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