SYNOPSIS
qmail-queue
DESCRIPTION
qmail-queue reads a mail message from descriptor 0. It then reads
envelope information from descriptor 1. It places the message into the
outgoing queue for future delivery by qmail-send.
The envelope information is an envelope sender address followed by a
list of envelope recipient addresses. The sender address is preceded
by the letter F and terminated by a 0 byte. Each recipient address is
preceded by the letter T and terminated by a 0 byte. The list of
recipient addresses is terminated by an extra 0 byte. If qmail-queue
sees end-of-file before the extra 0 byte, it aborts without placing the
message into the queue.
Every envelope recipient address should contain a username, an @ sign,
and a fully qualified domain name.
qmail-queue always adds a Received line to the top of the message.
Other than this, qmail-queue does not inspect the message and does not
enforce any restrictions on its contents. However, the recipients
probably expect to see a proper header, as described in qmail-
header(5).
Programs included with qmail which invoke qmail-queue will invoke the
contents of QMAILQUEUE instead, if that environment variable is set.
FILESYSTEM RESTRICTIONS
qmail-queue imposes two constraints on the queue structure: each mess
subdirectory must be in the same filesystem as the pid directory; and
each todo subdirectory must be in the same filesystem as the intd
directory.
EXIT CODES
qmail-queue does not print diagnostics. It exits 0 if it has success-
fully queued the message. It exits between 1 and 99 if it has failed
to queue the message.
All qmail-queue error codes between 11 and 40 indicate permanent
errors:
11 Address too long.
31 Mail server permanently refuses to send the message to any recipi-
ents. (Not used by qmail-queue),
32 Mail server does not accept the message. (The message includes an
identified virus.)
33 Mail server does not accept the message. (The message is identi-
fied as spam.)
34 Mail server does not accept the message. (The message carries an
invalid MIME attachment.)
55 Unable to read a configuration file. The virus scanner called via
the QHPSI returned with return code other then 0 or QHPSIRC.
56 Problem making a network connection from this host. (Not used by
qmail-queue.)
61 Problem with the qmail home directory.
62 Problem with the queue directory.
63 Problem with queue/pid.
64 Problem with queue/mess.
65 Problem with queue/intd.
66 Problem with queue/todo.
71 Mail server temporarily refuses to send the message to any recipi-
ents. (Not used by qmail-queue.)
72 Connection to mail server timed out. (Not used by qmail-queue.)
73 Connection to mail server rejected. (Not used by qmail-queue.)
74 Connection to mail server succeeded, but communication failed.
(Not used by qmail-queue.)
81 Internal bug; e.g., segmentation fault.
91 Envelope format error.
QHPSI ARGUMENTS
The Qmail High Performance Scanner interface QHPSI allows qmail-queue
to read up to seven arguments taken from the environment to be used as
a call-interface for an external virus scanner:
QHPSI
is set to the file name of the virus scanner, ie.
QHPSI='/usr/local/bin/clamscan'. The path can be omitted, if the
virus scanner is in the default path.
QHPSIARG1...3
Optional additional arguments can be included here, ie. QHP-
SIARG1="--verbose". Useful to suppress output in case an email is
clean and to enable mailbox support for the virus scanner.
QHPSIRC
To specify the return code of the virus scanner in case of an
infection; default is 1.
QHPSIMINSIZE
The minimal size of the message to invoke the virus scanner;
default is 0. A typical choice would be QHPSIMINSIZE=10000 (~10k).
QHPSIMAXSIZE
The maximal size of the message to invoke the virus scanner;
default is unresistricte. A typical choice would be
QHPSIMAXSIZE=1000000 (~1M).
SEE ALSO
addresses(5), envelopes(5), qmail-inject(8), qmail-header(8),
qmail-qmqpc(8), qmail-send(8), qmail-smtpd(8)
8 s/qmail:(qmail-queue)
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