Dec  8 17:55:02 pluto sm-mta[26918]: kB91t2Tn026918: ruleset=check_rcpt, arg1=<cygnus@destination.com>, relay=mail1.sea5.speakeasy.net [69.17.117.3], reject=550 5.7.1 <cygnus@destionation.com>... Relaying denied
Dec  8 17:55:02 pluto sm-mta[26918]: kB91t2Tn026918: from=<source@testdomain.com>, size=749, class=0, nrcpts=0, proto=ESMTP, daemon=IPv4, relay=mail1.sea5.speakeasy.net [69.17.117.3]