rfc5598.txt:has no knowledge of the Alias mechanism.:UNKNOWN:UNKNOWN:52:jul:2009:UNKNOWN:pdf,figure,seccons:draft-crocker-email-arch:2009-06-09:2007-06-14:18:290:350:67:725:5:2004-05-17:0::2004-05-17:1122:2009-07-14:35