pqshell – A shell-like to interact with a Postfix mails queue¶

DESCRIPTION¶

pqshell is a shell-like to interact with Postfix mails queue. It provide simple means to view the queue content, filter mails on criterias like Sender or delivery errors and lead administrative operations.

SYNOPSIS¶

pqshell [options]

FEATURES¶

Asynchronous interactions with Postfix mails queue.
Mails filtering on various criterias.
Administrative operations on mails queue
History and autocomplete via readline, if installed.

OPTIONS¶

No options supported.

SHELL COMMANDS¶

An inside help is available with the help command. Each provided command takes subcommands and command’s help can be obtained while running it without argument.

store¶

Control of Postfix queue content storage

Subcommands:

status

Show store status.

load

Load Postfix queue content.

Example:
PyMailq (sel:0)> store status
store is not loaded
PyMailq (sel:0)> store load
590 mails loaded from queue
PyMailq (sel:590)> store status
store loaded with 590 mails at 2014-05-05 13:43:22.592767

select¶

Select mails from Postfix queue content. Filters are cumulatives and designed to simply implement advanced filtering with simple syntax. The default prompt will show how many mails are currently selected by all applied filters. Order of filters application is also important.

Subcommands:

date

Select mails by date.

Usage: select date X [Y]

error

Select mails by error message. Specified error message can be partial and will be check against the whole error message.

Usage: select error <error_msg>

replay

Reset content of selector with store content and replay filters.

reset

Reset content of selector with store content, remove filters.

rmfilter

Remove filter previously applied. Filters ids are used to specify filter to remove.

Usage: select rmfilter <filterid>

sender

Select mails from sender.

Usage: select sender <sender> [exact]

size

Select mails by size in Bytes. Signs - and + are supported, if not specified, search for exact size. Size range is allowed by using - (lesser than) and + (greater than).

Usage: select size <-n|n|+n> [-n]

status

Select mails with specific postfix status.

Usage: select status <status>

Filtering Example:
PyMailq (sel:608)> select size -5000
PyMailq (sel:437)> select sender MAILER-DAEMON
PyMailq (sel:316)> select status active
PyMailq (sel:0)>
Filters management:
PyMailq (sel:608)> select size -5000
PyMailq (sel:437)> select sender MAILER-DAEMON
PyMailq (sel:316)> show filters
0: select size:
    smax: 5000
    smin: 0
1: select sender:
    partial: True
    sender: MAILER-DAEMON
PyMailq (sel:316)> select rmfilter 1
PyMailq (sel:437)> select sender greedy-sender@domain.com
PyMailq (sel:25)> select reset
Selector resetted with store content (608 mails)
PyMailq (sel:608)>

show¶

Display the content of current mails selection or specific mail IDs. Modifiers have been implemented to allow quick output manipulation. These allow you to sort, limit or even output a ranking by specific field. By default, output is sorted by date of acceptance in queue.

Optionnal modifiers can be provided to alter output:

limit <n>

Display the first n entries.

sortby <field> [asc|desc]

Sort output by field asc or desc. Default sorting is made descending.

rankby <field>

Produce mails ranking by field.

Known fields:

qid – Postqueue mail ID.

date – Mail date.

sender – Mail sender.

recipients – Mail recipients (list, no sort).

size – Mail size.

errors – Postqueue deferred error messages (list, no sort).

Subcommands:

filters

Show filters applied on current mails selection.

Usage: show filters

selected

Show selected mails.

Usage: show selected [modifiers]

Example:
PyMailq (sel:608)> show selected limit 5
2014-05-05 20:54:24 699C11831669 [active] jjj@dom1.com (14375B)
2014-05-05 20:43:39 8D60C13C14C6 [deferred] bbb@dom9.com (39549B)
2014-05-05 20:35:08 B0077198BC31 [deferred] rrr@dom2.com (4809B)
2014-05-05 20:30:09 014E21AB4B78 [deferred] aaa@dom7.com (2450B)
2014-05-05 20:25:04 CF1BE127A8D3 [deferred] xxx@dom2.com (4778B)
...Preview of first 5 (603 more)...
PyMailq (sel:608)> show selected sortby sender limit 5 asc
2014-05-02 11:36:16 40AA9149A9D7 [deferred] aaa@dom1.com (8262B)
2014-05-01 05:30:23 5E0B2162BE63 [deferred] bbb@dom4.com (3052B)
2014-05-02 05:30:20 653471AC5F76 [deferred] ccc@dom5.com (3052B)
2014-05-02 09:49:01 A00D3159AEE [deferred] ddd@dom1.com (3837B)
2014-05-05 18:18:59 98E9A790749 [deferred] ddd@dom2.com (1551B)
...Preview of first 5 (603 more)...
PyMailq (sel:608)> show selected rankby sender limit 5
sender                                    count
================================================
jjj@dom8.com                              334
xxx@dom4.com                              43
nnn@dom1.com                              32
ccc@dom3.com                              14
sss@dom5.com                              13
...Preview of first 5 (64 more)...