+1999-03-02 09:44:33 10HmbD-0005vi-00 == userx@mxt2.test.ex R=bydns defer (-1): missing MX, or all MXs point to missing A records, and defer requested
+1999-03-02 09:44:33 10HmbE-0005vi-00 <= CALLER@test.ex U=CALLER P=local S=sss for userx@mxnonexist.test.ex
+1999-03-02 09:44:33 10HmbE-0005vi-00 == userx@mxnonexist.test.ex R=bydns defer (-1): missing MX, or all MXs point to missing A records, and defer requested