pfqueue

pfqueue - queue realtime scanner for MTA

Beschreibung

pfqueue ist ein Konsolenwerkzeug für die Verwaltung von MTA (Mail Transfer Agent) Nachrichtenwarteschlangen.

• Es verwaltet Warteschlangen über "Backends", Bibliotheken, die mit dem MTA interagieren, und zeigt Informationen über eine Konsole, ein ncurses-basiertes "Frontend", an.
• Derzeit hat pfqueue Backends für Postfix (sowohl 1.x als auch 2.x) und Exim (sowohl Version 3 als auch 4).

Installation

root@debian ~  apt install pfqueue

Syntax

pfqueue [-ehvn] [-b postfix1|postfix2|exim] [-q queue#] [-m maxmsg]  [-s seconds] [-l seconds] [-B backends_path] [-p executables_path] [-c config_path] [-d seconds]

Optionen

pfqueue accepts the following options, which are common to any backend:

-B backends_path Tell pfqueue where backends are located. They should be automatically found, since your installation should have placed them in a standard lib dir. If not so, use this option to force it.

-b backend Load a given backend. It can be autodetect, postfix1, postfix2 or exim. Backends are libraries named pfq_backendname.so, located in the instal‐ lation library path (except for autodetect, which is only a virtual backend that will try to guess what kind of MTA is installed on the ma‐ chine, and to load the proper backend).

-v Show version.

-h Show usage.

-c config Use a custom MTA configuration; note that the meaning of 'configuration' may vary: for example, postfix needs a directory, exim needs a file.

-m max Set the maximum number of messages shown in a queue. The default is 200.

-s seconds Set the display autorefresh rate in seconds. Default is 1.

-e Start reading from/to fields from message envelope instead of headers, if the backend (and MTA) supports it.

-p directory Set MTA executables path.

-q queue_num Start by scanning the queue number queue_num: 1 for deferred, 2 for ac‐ tive, 3 for incoming, 4 for hold, whatever the MTA calls them. Some backends may not support all of these queues.

-l limit Make pfqueue limit the time for scanning the queue tree and for retreiv‐ ing messages informations to this number of seconds; time is not that accurate, since blocking I/O operations may cause lags, but it shouldn't go too far. Obviously, limiting process run time may lead to uncomplete results. Use this option just in case pfqueue takes too long in per‐ forming operations, or you have a very slow machine, or you have very busy queues.

-d seconds Seconds to wait between queue scans. Default is 1.

-n Toggle colors off; note that use of colors can be toggled also when pfqueue is running, with '+' key.

-r Remote host to connect to. This implies a spfqueue instance running on the remote host.

Exit-Status

pfqueue returns 0 if everything goes fine, or:

-1 if pfqueue library cannot be initialized
-2 if frontend cannot be initialized
-3 if you are not root
-4 if pfqueue library cannot be started

Anwendungen

During program run, what you see is a window divided into two sections: the up‐ per one is the list of messages found in the current queue, and the lower one is a small selection of details for the current message. A number of operation can then be done on a single message, or on a bunch of selected messages.

UP/DOWN arrow keys Move the cursor up/down.

HOME/END or g/G Move to the top/bottom of the list.

1, 2, 3, 4, 5 Select queue to show. Every MTA handles queues in its own way, so these are general keys that cannot be generically described. For Postfix, they will select respectively 'deferred', 'active', 'incoming', 'hold' and 'corrupt' queues. For Exim, they will have no effect since the backend (and Exim, really) does not archive messages in different queues depend‐ ing on their status.

d Delete message.

h Hold message.

l Release message.

r Requeue message.

m Mark current message: this will "mark" the message as the start of a block, and the following 't' key (see below) will tag all messages be‐ tween that and the tagged one.

t Tag/untag message; tagged messages will be shown in bold. To operate on all the tagged messages at once, use ';' key (see below). If a mark (see above) is present, all messages between the tagged and the marked will be tagged.

a Tag all messages.

u Untag all messages.

Make delete/hold/release/requeue actions work on all of the tagged mes‐

sages at once.

Toggle auto-work-on-tagged: when activated, and if there are tagged mes‐

sages, actions will work on tagged indipendently of work-on-tagged sta‐ tus (';' key).

e Toggle reading from/to fields from envelope or headers, if the backend supports it.

s Show current message details.

/ Find first message matching a POSIX regexp; the regexp you use can be prefixed by one of f:, t:, e:, s: which will limit the search in, re‐ spectively, the From, To, From-or-To, Subject fields. The default is to search everywhere.

n Find next message matching last used regexp.

p Find previous message matching last used regexp.

T Search and tag messages: all messages matching the regexp will be tagged; the same prefixes described in '/' search can be used.

c Enable/disable confirmation request for action on messages.

- Toggle queue scanning on/off. Use it when you have a fast changing situ‐ ation and you want to freeze it for further examination. Note that then scanning is disabled, the messages you see in the list may have gone away (delivered?) in the meantime.

+ Toggle colors on/off.

> Increase body window height.

< Decrease body window height.

, Scroll body window up.

b Show/hide body window.

. Scroll body window down.

B Toggle body automatic show on/off.

s Show body in a new window.

S Sort queue by from/to/subject. Keep in mind that it may slow down inter‐ face, since the full queue must be read in order to be sorted.

ENTER Show body of current message (if automatic show is off): if body window is not enabled, it behaves like 's' key.

Dokumentation

Man-Pages

1. PFQUEUE(8)

Testfragen

Testfrage 1

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Testfrage 2

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Testfrage 3

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Testfrage 4

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Testfrage 5

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