.TH s/qmail: qmail-qmtpd 8
.SH NAME
qmail-qmtpd \- receive mail via QMTP/QMTPS
.SH SYNOPSIS
.B qmail-qmtpd
.SH DESCRIPTION
.B qmail-qmtpd
receives mail messages via the Quick Mail Transfer Protocol (QMTP)
or the TLS secured QMTP (QMTPS) version
and invokes
.B qmail-queue
to deposit them into the outgoing queue.
.B qmail-qmtpd
must be supplied several environment variables;
see
.BR tcp-environ(5) .
In case a valid X.509 client certificate is recognized, 
QMTPS enables 
.I relaying 
of mail messages.

.B qmail-qmtpd
supports the
.IR rcpthosts ,
.IR morercpthosts ,
.BR RELAYCLIENT ,
.IR databytes ,
and
.B DATABYTES
mechanisms described in
.BR qmail-smtpd(8) .
.SH "SEE ALSO"
tcp-environ(5),
qmail-control(5),
qmail-queue(8),
qmail-smtpd(8)