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-.\" $OpenBSD: smtpctl.8,v 1.64 2018/09/18 06:21:45 miko Exp $
-.\"
-.\" Copyright (c) 2006 Pierre-Yves Ritschard <pyr@openbsd.org>
-.\" Copyright (c) 2012 Gilles Chehade <gilles@poolp.org>
-.\"
-.\" Permission to use, copy, modify, and distribute this software for any
-.\" purpose with or without fee is hereby granted, provided that the above
-.\" copyright notice and this permission notice appear in all copies.
-.\"
-.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-.\"
-.Dd $Mdocdate: September 18 2018 $
-.Dt SMTPCTL 8
-.Os
-.Sh NAME
-.Nm smtpctl ,
-.Nm mailq
-.Nd control the Simple Mail Transfer Protocol daemon
-.Sh SYNOPSIS
-.Nm
-.Ar command
-.Op Ar argument ...
-.Nm mailq
-.Sh DESCRIPTION
-The
-.Nm
-program controls
-.Xr smtpd 8 .
-Commands may be abbreviated to the minimum unambiguous prefix; for example,
-.Cm sh ro
-for
-.Cm show routes .
-.Pp
-The
-.Nm mailq
-command is provided for compatibility with other MTAs
-and is simply a shortcut for
-.Cm show queue .
-.Pp
-The following commands are available:
-.Bl -tag -width Ds
-.It Cm discover Ar envelope-id | message-id
-Schedule a single envelope, or all envelopes with the same message ID
-that were manually moved to the queue.
-.It Cm encrypt Op Ar string
-Encrypt the password
-.Ar string
-to a representation suitable for user credentials and print it to the
-standard output.
-If
-.Ar string
-is not provided, cleartext passwords are read from standard input.
-.Pp
-It is advised to avoid providing the password as a parameter as it will be
-visible from
-.Xr top 1
-and
-.Xr ps 1
-output.
-.It Cm log brief
-Disable verbose debug logging.
-.It Cm log verbose
-Enable verbose debug logging.
-.It Cm monitor
-Display updates of some
-.Xr smtpd 8
-internal counters in one second intervals.
-Each line reports the increment of all counters since the last update,
-except for some counters which are always absolute values.
-The first line reports the current value of each counter.
-The fields are:
-.Pp
-.Bl -bullet -compact
-.It
-Current number of active SMTP clients (absolute value).
-.It
-New SMTP clients.
-.It
-Disconnected clients.
-.It
-Current number of envelopes in the queue (absolute value).
-.It
-Newly enqueued envelopes.
-.It
-Dequeued envelopes.
-.It
-Successful deliveries.
-.It
-Temporary failures.
-.It
-Permanent failures.
-.It
-Message loops.
-.It
-Expired envelopes.
-.It
-Envelopes removed by the administrator.
-.It
-Generated bounces.
-.El
-.It Cm pause envelope Ar envelope-id | message-id | Cm all
-Temporarily suspend scheduling for the envelope with the given ID,
-envelopes with the given message ID,
-or all envelopes.
-.It Cm pause mda
-Temporarily stop deliveries to local users.
-.It Cm pause mta
-Temporarily stop relaying and deliveries to
-remote users.
-.It Cm pause smtp
-Temporarily stop accepting incoming sessions.
-.It Cm profile Ar subsystem
-Enables real-time profiling of
-.Ar subsystem .
-Supported subsystems are:
-.Pp
-.Bl -bullet -compact
-.It
-queue, to profile cost of queue IO
-.It
-imsg, to profile cost of event handlers
-.El
-.It Cm remove Ar envelope-id | message-id | Cm all
-Remove a single envelope,
-envelopes with the given message ID,
-or all envelopes.
-.It Cm resume envelope Ar envelope-id | message-id | Cm all
-Resume scheduling for the envelope with the given ID,
-envelopes with the given message ID,
-or all envelopes.
-.It Cm resume mda
-Resume deliveries to local users.
-.It Cm resume mta
-Resume relaying and deliveries to remote users.
-.It Cm resume route Ar route-id
-Resume routing on disabled route
-.Ar route-id .
-.It Cm resume smtp
-Resume accepting incoming sessions.
-.It Cm schedule Ar envelope-id | message-id | Cm all
-Mark as ready for immediate delivery
-a single envelope,
-envelopes with the given message ID,
-or all envelopes.
-.It Cm show envelope Ar envelope-id
-Display envelope content for the given ID.
-.It Cm show hosts
-Display the list of known remote MX hosts.
-For each of them, it shows the IP address, the canonical hostname,
-a reference count, the number of active connections to this host,
-and the elapsed time since the last connection.
-.It Cm show hoststats
-Display status of last delivery for domains that have been active in the
-last 4 hours.
-It consists of the following fields, separated by a "|":
-.Pp
-.Bl -bullet -compact
-.It
-Domain.
-.It
-.Ux
-timestamp of last delivery.
-.It
-Status of last delivery.
-.El
-.It Cm show message Ar envelope-id
-Display message content for the given ID.
-.It Cm show queue
-Display information concerning envelopes that are currently in the queue.
-Each line of output describes a single envelope.
-It consists of the following fields, separated by a "|":
-.Pp
-.Bl -bullet -compact
-.It
-Envelope ID.
-.It
-Address family of the client which enqueued the mail.
-.It
-Type of delivery: one of "mta", "mda" or "bounce".
-.It
-Various flags on the envelope.
-.It
-Sender address (return path).
-.It
-The original recipient address.
-.It
-The destination address.
-.It
-Time of creation.
-.It
-Time of expiration.
-.It
-Time of last delivery or relaying attempt.
-.It
-Number of delivery or relaying attempts.
-.It
-Current runstate: either "pending" or "inflight" if
-.Xr smtpd 8
-is running, or "offline" otherwise.
-.It
-Delay in seconds before the next attempt if pending, or time elapsed
-if currently running.
-This field is blank if
-.Xr smtpd 8
-is not running.
-.It
-Error string for the last failed delivery or relay attempt.
-.El
-.It Cm show relays
-Display the list of currently active relays and associated connectors.
-For each relay, it shows a number of counters and information on its
-internal state on a single line.
-Then comes the list of connectors
-(source addresses to connect from for this relay).
-.It Cm show routes
-Display status of routes currently known by
-.Xr smtpd 8 .
-Each line consists of a route number, a source address, a destination
-address, a set of flags, the number of connections on this
-route, the current penalty level which determines the amount of time
-the route is disabled if an error occurs, and the delay before it
-gets reactivated.
-The following flags are defined:
-.Pp
-.Bl -tag -width xx -compact
-.It D
-The route is currently disabled.
-.It N
-The route is new.
-No SMTP session has been established yet.
-.It Q
-The route has a timeout registered to lower its penalty level and possibly
-reactivate or discard it.
-.El
-.It Cm show stats
-Displays runtime statistics concerning
-.Xr smtpd 8 .
-.It Cm show status
-Shows if MTA, MDA and SMTP systems are currently running or paused.
-.It Cm spf walk
-Recursively look up SPF records for the domains read from stdin.
-For example:
-.Bd -literal -offset indent
-# smtpctl spf walk < domains.txt
-.Ed
-.It Cm trace Ar subsystem
-Enables real-time tracing of
-.Ar subsystem .
-Supported subsystems are:
-.Pp
-.Bl -bullet -compact
-.It
-imsg
-.It
-io
-.It
-smtp (incoming sessions)
-.It
-filters
-.It
-mta (outgoing sessions)
-.It
-bounce
-.It
-scheduler
-.It
-expand (aliases/virtual/forward expansion)
-.It
-lookup (user/credentials lookups)
-.It
-stat
-.It
-rules (matched by incoming sessions)
-.It
-mproc
-.It
-all
-.El
-.It Cm unprofile Ar subsystem
-Disables real-time profiling of
-.Ar subsystem .
-.It Cm untrace Ar subsystem
-Disables real-time tracing of
-.Ar subsystem .
-.It Cm update table Ar name
-Updates the contents of table
-.Ar name ,
-for tables using the
-.Dq file
-backend.
-.El
-.Pp
-When
-.Nm smtpd
-receives a message, it generates a
-.Ar message-id
-for the message, and one
-.Ar envelope-id
-per recipient.
-The
-.Ar message-id
-is a 32-bit random identifier that is guaranteed to be
-unique on the host system.
-The
-.Ar envelope-id
-is a 64-bit unique identifier that encodes the
-.Ar message-id
-in the 32 upper bits and a random envelope identifier
-in the 32 lower bits.
-.Pp
-A command which specifies a
-.Ar message-id
-applies to all recipients of a message;
-a command which specifies an
-.Ar envelope-id
-applies to a specific recipient of a message.
-.Sh FILES
-.Bl -tag -width "/var/run/smtpd.sockXXX" -compact
-.It Pa /var/run/smtpd.sock
-.Ux Ns -domain
-socket used for communication with
-.Xr smtpd 8 .
-.El
-.Sh SEE ALSO
-.Xr smtpd 8
-.Sh HISTORY
-The
-.Nm
-program first appeared in
-.Ox 4.6 .