rfc6686.txt:Murray S. Kucherawy:UNKNOWN:usa:12:jul:2012:UNKNOWN:kwd,seccons:draft-ietf-spfbis-experiment:2012-06-27:2012-05-12:22:0:0:23:45:90:2012-02-17:49:draft-kucherawy-spfbis-experiment:2012-4-6:36:none:9