s/qmail/DOC/HELO/EHLOについて、ここに記述してください。
HELOCHECK Meaning "" evaluate control/badhelo "." reject session, if no HELO/EHLO greeting is provided/empty and evaluate control/badhelo "=" require that the HELO/EHLO greeting corresponds to the FQDN (= TCPREMOTEHOST) of the host "A" DNS A lookup for the HELO/EHLO greeting and evaluate control/badhelo "M" DNS MX lookup for the HELO/EHLO greeting and evaluate control/badhelo