qmail-qmtpd - receive mail via QMTP/QMTPS
qmail-qmtpd
qmail-qmtpd receives mail messages via the Quick Mail Transfer Protocol (QMTP) or the TLS secured QMTP (QMTPS) version and invokes qmail-queue to deposit them into the outgoing queue. qmail-qmtpd must be supplied several environment variables; see tcp-environ(5). In case a valid X.509 client certificate is recognized, QMTPS enables relaying of mail messages.
qmail-qmtpd supports the rcpthosts, morercpthosts, RELAYCLIENT, databytes, and DATABYTES mechanisms described in qmail-smtpd(8).
tcp-environ(5), qmail-control(5), qmail-queue(8), qmail-smtpd(8)