qmail-smtpd(8)

NAME
qmail-smtpd - receive mail via SMTP

SYNOPSIS
qmail-smtpd

DESCRIPTION
qmail-smtpd receives mail messages via the Simple Mail Transfer Protocol (SMTP) and invokes qmail-queue to deposit them into the outgoing queue. qmail-smtpd must be supplied several environment variables; see tcp-environ(5). qmail-smtpd is responsible for counting hops. It rejects any message with 100 or more Received or Delivered-To header fields.

TRANSPARENCY
qmail-smtpd converts the SMTP newline convention into the UNIX newline convention by converting CR LF into LF. qmail-smtpd accepts messages that contain long lines or non-ASCII characters, even though such messages violate the SMTP protocol.

CONTROL FILES

localiphost
    Replacement host name for local IP addresses. Default: me, if that is supplied. qmail-smtpd is responsible for recognizing dotted-decimal addresses for the current host. When it sees a recipient address of the form box@[d.d.d.d], where d.d.d.d is a local IP address, it replaces [d.d.d.d] with localiphost. This is done before rcpthosts.

rcpthosts
    Allowed RCPT domains. If rcpthosts is supplied, qmail-smtpd will reject any envelope recipient address with a domain not listed in rcpthosts.

smtpgreeting
    SMTP greeting message. Default: me, if that is supplied; otherwise qmail-smtpd will refuse to run. The first word of smtpgreeting should be the current host's name.

timeoutsmtpd
    Number of seconds qmail-smtpd will wait for each new buffer of data from the remote SMTP client. Default: 1200.

SEE ALSO
tcp-env(1), tcp-environ(5), qmail-control(5), qmail-inject(8), qmail-queue(8), qmail-remote(8)