My phplist is ignoring queue and load management settings in extended_config file

Here’s my extended_config file. Even after setting queue and throttling, 1000 mails are sent within a minute
<?php

=========================================================================

Queue and Load management

=========================================================================

*/


# If you set up your system to send the message automatically (from commandline), 
# you can set this value to 0, so "Process Queue" will disappear from the site
# this will also stop users from loading the page on the web frontend, so you will
# have to make sure that you run the queue from the commandline
# check README.commandline how to do this
define ("MANUALLY_PROCESS_QUEUE",1);

# batch processing
# if you are on a shared host, it will probably be appreciated if you don't send
# out loads of emails in one go. To do this, you can configure batch processing.
# Please note, the following two values can be overridden by your ISP by using
# a server wide configuration. So if you notice these values to be different
# in reality, that may be the case

# max messages to process
# if there are multiple messages in the queue, set a maximum to work on
define('MAX_PROCESS_MESSAGE',999);

# define the amount of emails you want to send per period. If 0, batch processing
# is disabled and messages are sent out as fast as possible
define("MAILQUEUE_BATCH_SIZE",4); 

# define the length of one batch processing period, in seconds (3600 is an hour)
define("MAILQUEUE_BATCH_PERIOD",120);

# to avoid overloading the server that sends your email, you can add a little delay
# between messages that will spread the load of sending
# you will need to find a good value for your own server
# value is in seconds, and you can use fractions, eg "0.5" is half a second
# (or you can play with the autothrottle below)
define('MAILQUEUE_THROTTLE',15); 

# Mailqueue autothrottle. This will try to automatically change the delay
# between messages to make sure that the MAILQUEUE_BATCH_SIZE (above) is spread evently over
# MAILQUEUE_BATCH_PERIOD, instead of firing the Batch in the first few minutes of the period
# and then waiting for the next period. This only works with mailqueue_throttle off
# and MAILQUEUE_BATCH_PERIOD being a positive value
# it still needs tweaking, so send your feedback to mantis.phplist.com if you find
# any issues with it
define('MAILQUEUE_AUTOTHROTTLE',0);

# Domain Throttling
# You can activate domain throttling, by setting USE_DOMAIN_THROTTLE to 1
# define the maximum amount of emails you want to allow sending to any domain and the number
# of seconds for that amount. This will make sure you don't send too many emails to one domain
# which may cause blacklisting. Particularly the big ones are tricky about this.
# it may cause a dramatic increase in the amount of time to send a message, depending on how
# many users you have that have the same domain (eg hotmail.com)
# if too many failures for throttling occur, the send process will automatically add an extra
# delay to try to improve that. The example sends 1 message every 2 minutes.

define('USE_DOMAIN_THROTTLE',0);
define('DOMAIN_BATCH_SIZE',1);
define('DOMAIN_BATCH_PERIOD',10);

# if you have very large numbers of users on the same domains, this may result in the need
# to run processqueue many times, when you use domain throttling. You can also tell phplist
# to simply delay a bit between messages to increase the number of messages sent per queue run
# if you want to use that set this to 1, otherwise simply run the queue many times. A cron
# process every 10 or 15 minutes is recommended.
define('DOMAIN_AUTO_THROTTLE',0);

# MAX_PROCESSQUEUE_TIME
# to limit the time, regardless of batch processing or other throttling of a single run of "processqueue"
# you can set the MAX_PROCESSQUEUE_TIME in seconds
# if a single queue run exceeds this amount, it will stop, just to pick up from where it left off next time
# this allows multiple installations each to run the queue, but slow installations (eg with large emails) 
# set to 0 to disable this feature.
define('MAX_PROCESSQUEUE_TIME',0);




/*

=========================================================================

Miscellaneous

=========================================================================

*/

## default system language
# set the default system language. If the language cannot be detected, it will fall back to 
# this one. It has to be the "ISO code" of the language.
# to find what languages are available here, check out http://translate.phplist.com/
$default_system_language = 'en';

## use Precedence
# according to the email standards, the Precedence header is outdated, and should not be used
# however, Google/Gmail requests that the header is used.
# So, it's up to you what to do. Yes, or No. Defaults to "yes" use it
# see also https://mantis.phplist.com/view.php?id=16688
#define('USE_PRECEDENCE_HEADER',false);

# the number of criterias you want to be able to select when sending a message.
# Useful is is to make it the same as the number of selectable attributes you enter in the
# system, but that is up to you (selectable = select, radio or checkbox)
define ("NUMCRITERIAS",2);

# if you do not require users to actually sign up to lists, but only want to
# use the subscribe page as a kind of registration system, you can set this to 1 and
# users will not receive an error when they do not check a list to subscribe to
define("ALLOW_NON_LIST_SUBSCRIBE",0);

# Show private lists
# If you have a mixture of public and private lists, you can set this to 1, to allow
# your subscribers to see (and unsubscribe from) your private lists on their 
# preferences page. By default it won't show private (non-public) lists
# see also https://mantis.phplist.com/view.php?id=15274
define('PREFERENCEPAGE_SHOW_PRIVATE_LISTS',0);

# wrap html
# in some cases, strange newlines appear in the HTML source of campaigns
# If that's happening to you, you may want to set this one
# check https://mantis.phplist.com/view.php?id=15603 for more info
# define('WORDWRAP_HTML',60);


# year ranges. If you use dates, by default the drop down for year will be from
# three years before until 10 years after this the current value for year. If there
# is no current value the current year will be used.
# if you want to use a bigger range you can set the start and end year here
# be aware that the drop down may become very large.
# if set to 0 they will use the default behaviour. So I'm afraid you can't start with
# year 0. Also be aware not to set the end year to something relatively soon in the
# future, or it will stop working when you reach that year.
define('DATE_START_YEAR',0);
define('DATE_END_YEAR',0);

# empty value prefix. This can be used to identify values in select attributes
# that are not allowed to be selected and cause an error "Please enter your ..."
# by using a top value that starts with this string, you can make sure that the
# selects do not have a default value, that may be accidentally selected
# eg. "-- choose your country"
define('EMPTY_VALUE_PREFIX','--');

# admin details for messages
# if this is enabled phplist will initialise the From in new messages to be the
# details of the logged in administrator who is sending the message
# otherwise it will default to the values set in the configure page that identify
# the From for system messages
define('USE_ADMIN_DETAILS_FOR_MESSAGES',1);

# test emails
# if you send a test email, phplist will by default send you two emails, one in HTML format
# and the other in Text format. If you set this to 1, you can override this behaviour
# and only have a test email sent to you that matches the user record of the user that the
# test emails are sent to
define('SEND_ONE_TESTMAIL',0);

# send a webpage. You can send the contents of a webpage, by adding
# [URL:http://website/file.html] as the content of a message. This can also be personalised
# for users by using eg
# [URL:http://website/file.html?email=[email]]
# the timeout for refetching a URL can be defined here. When the last time a URL has been
# fetched exceeds this time, the URL will be refetched. This is in seconds, 3600 is an hour
# this only affects sending within the same "process queue". If a new process queue is started
# the URL will be fetched the first time anyway. Therefore this is only useful is processing
# your queue takes longer than the time identified here.
define('REMOTE_URL_REFETCH_TIMEOUT',3600);

# Users Page Max. The page listing subscribers will stop listing them and require a search, 
# when the amount of subscribers is over 1000. With this settings you can change that cut-off point
define('USERSPAGE_MAX',1000);

# Message Age. The Scheduling tab has an option to stop sending a message when it has reached a certain date.
# This can be used to avoid the campaign going out, eg when an event has already taken place.
# This value defaults to the moment of creating the campaign + the number of seconds set here.
# phpList will mark the campaign as sent, when this date has been reached
# 15768000 is about 6 months, but other useful values can be
# 2592000 - 30 days
# 604800 - a week.
# 86400 - a day
define('DEFAULT_MESSAGEAGE',15768000);

# Repetition. This adds the option to repeat the same message in the future.
# After the message has been sent, this option will cause the system to automatically
# create a new message with the same content. Be careful with it, because you may
# send the same message to your users
# the embargo of the message will be increased with the repetition interval you choose
# also read the README.repetition for more info
define('USE_REPETITION',0);

# admin language
# if you want to disable the language switch for the admin interface (and run all in english)
# set this one to 0
define('LANGUAGE_SWITCH',1);

## error 404 page
## custom "File not found".
## in several places, phpList may generate a "file not found" page. If you want to provide your own design for this
## page, you can set this here. This needs to be a file that is in your webserver document root
## eg /home/youraccount/public_html/404.html
## the contents are displayed "as-is", so it will not run any PHP code in the file.
define('ERROR404PAGE','404.html');


/*

=========================================================================

Message sending options
* phpList now only uses phpMailer for sending, but below you can
* tweak a few options on how that is done

=========================================================================

*/

# you can specify the location of the phpMailer class here
# if not set, the version included in the distribution will be used
## eg for Debian based systems, it may be something like the example below
## when you do this, you may need to run some tests, to see if the phpMailer version
## you have works ok
#define ('PHPMAILER_PATH','/usr/share/php/libphp-phpmailer/class.phpmailer.php');

# To use a SMTP server please give your server hostname here, leave it blank to use the standard
# PHP mail() command.
define("PHPMAILERHOST",'');

# in the above you can specify multiple SMTP servers like this:
# 'server1:port1;server2:port2;server3:port3' eg
#define('PHPMAILERHOST','smtp1.mydomain.com:25;smtp2.mydomain.com:2500;smtp3.phplist.com:5123');

# if you want to use smtp authentication when sending the email uncomment the following
# two lines and set the username and password to be the correct ones
#$phpmailer_smtpuser = 'smtpuser';
#$phpmailer_smtppassword = 'smtppassword';

## you can set this to send out via a different SMTP port
# define('PHPMAILERPORT',25);

## test vs blast
# you can send test messages via a different SMTP host than the actual campaign queue 
# if not set, these default to the above PHPMAILERHOST and PHPMAILERPORT
# define('PHPMAILERTESTHOST','testsmtp.mydomain.com');
# define('PHPMAILERBLASTHOST','livesmtp.mydomain.com');
# define('PHPMAILERBLASTPORT',25);

# to use SSL/TLS when sending set this value
# it can either be "ssl" or "tls", nothing else
# define("PHPMAILER_SECURE",'ssl');

## Smtp Timeout
## If you use SMTP for sending, you can set the timeout of the SMTP connection
## defaults to 5 seconds
# define('SMTP_TIMEOUT',5);

/*

=========================================================================

Advanced Features, HTML editor, RSS, Attachments, Plugins. PDF creation

=========================================================================

*/

# Usertrack
# Usertrack is used to track views or opens of campaigns. This only works in HTML messages
# as it relies on a little image being pulled from the phpList system to update the database
# To add it to your campaigns, you need to add [USERTRACK] somewhere. 
# From version 3 onwards, this is automatically done with the following setting. If you do not
# want it, you can switch it off here, by uncommenting the next line
# define('ALWAYS_ADD_USERTRACK',0);

# Click tracking
# If you set this to 1, all links in your emails will be converted to links that
# go via phpList. This will make sure that clicks are tracked. This is experimental and
# all your findings when using this feature should be reported to mantis
# for now it's off by default until we think it works correctly
define('CLICKTRACK',0);

# Click track, list detail
# if you enable this, you will get some extra statistics about unique users who have clicked the
# links in your messages, and the breakdown between clicks from text or html messages.
# However, this will slow down the process to view the statistics, so it is
# recommended to leave it off, but if you're very curious, you can enable it
define('CLICKTRACK_SHOWDETAIL',0);

# If you want to upload images in the editor, you need to specify the location
# of the directory where the images go. This needs to be writable by the webserver,
# and it needs to be in your public document (website) area
# the directory is relative to the webserver root directory
#   eg if your webserver root is /home/user/public_html
#   then the images directory is /home/user/public_html/uploadimages
# This is a potential security risk, so read README.security for more information
define('UPLOADIMAGES_DIR',"uploadimages");

## for the above, you can also use subdirectories, for example
#define("UPLOADIMAGES_DIR","images/newsletter/uploaded");

# Manual text part, will give you an input box for the text version of the message
# instead of trying to create it by parsing the HTML version into plain text
define('USE_MANUAL_TEXT_PART',1);

# set this to 1 to allow adding attachments to the mails
# caution, message may become very large. it is generally more
# acceptable to send a URL for download to users
# using attachments requires PHP 4.1.0 and up
define('ALLOW_ATTACHMENTS',0);

# when using attachments you can upload them to the server
# if you want to use attachments from the local filesystem (server) set this to 1
# filesystem attachments are attached at real send time of the message, not at
# the time of creating the message
define("FILESYSTEM_ATTACHMENTS",0);

# if you add filesystem attachments, you will need to tell phpList where your
# mime.types file is.
define("MIMETYPES_FILE","/etc/mime.types");

# if a mimetype cannot be determined for a file, specify the default mimetype here:
define("DEFAULT_MIMETYPE","application/octet-stream");

# you can create your own pages to slot into phpList and do certain things
# that are more specific to your situation (plugins)
# if you do this, you can specify the directory where your plugins are. It is
# useful to keep this outside the phpList system, so they are retained after
# upgrading
# there are some example plugins in the "plugins" directory inside the
# admin directory
# this directory needs to be absolute, or relative to the admin directory

#define("PLUGIN_ROOTDIR","/home/me/phplistplugins");

# uncomment this one to see the examples in the system (and then comment the
# one above)
define("PLUGIN_ROOTDIR","plugins");

# the attachment repository is the place where the files are stored (if you use
# ALLOW_ATTACHMENTS)
# this needs to be writable to your webserver user
# it also needs to be a full path, not a relative one
# for secutiry reasons it is best if this directory is not public (ie below
# your website document root)
$attachment_repository = '/tmp';

# if you want to be able to send your messages as PDF attachments, you need to install
# FPDF (http://www.fpdf.org) and set these variables accordingly

# define('FPDF_FONTPATH','/home/pdf/font/');
# require('fpdf.php');
# define("USE_PDF",1);
# $pdf_font = 'Times';
# $pdf_fontstyle = '';
# $pdf_fontsize = 14;

# the mime type for the export files. You can try changing this to
# application/vnd.ms-excel to make it open automatically in excel
# or text/tsv
$export_mimetype = 'application/csv';

# if you want to use export format optimized for Excel, set this one to 1
define("EXPORT_EXCEL",0);



# tmpdir. A location where phplist can write some temporary files if necessary
# Make sure it is writable by your webserver user, and also check that you have
# open_basedir set to allow access to this directory. Linux users can leave it as it is.
# this directory is used for all kinds of things, mostly uploading of files (like in
# import), creating PDFs and more

# On Linux based systems, it will be good to make sure this directory is on the same
# filesystem as your phpList installation. In some systems, renaming files or directories
# across filesystems fails.

$tmpdir = '/tmp';

# if you are on Windoze, and/or you are not using apache, in effect when you are getting
# "Method not allowed" errors you will want to uncomment this
# ie take off the #-character in the next line
# using this is not guaranteed to work, sorry. Easier to use Apache instead :-)
# $form_action = 'index.php';

# select the database module to use
# anyone wanting to submit other database modules is
# very welcome!
$database_module = "mysqli.inc";

# you can store sessions in the database instead of the default place by assigning
# a tablename to this value. The table will be created and will not use any prefixes
# this only works when using mysql and only for administrator sessions
# $SessionTableName = "phplistsessions";


/*

=========================================================================

Experimental Features
* these are things that require a bit more fine tuning and feedback in the bugtracker

=========================================================================

*/
# email address validation level [Bas]
# 0 = No email address validation. So PHPList can be used as a non-email-sending registration system.
# 1 = 10.4 style email validation.
# 2 = RFC821 email validation without escaping and quoting of local part.
# 3 = RFC821 email validation.
# This is an expirimental email address validation based on the original RFC. It will validate all kind 
# of 'weird' emails like !#$%&'*+-/=.?^_`{|}~@example.com and escaped\ spaces\ are\ allowed@[1.0.0.127]
# not implemented are:    
#   Length of domainPart is not checked
#   Not accepted are CR and LF even if escaped by \
#   Not accepted is Folding
#   Not accepted is literal domain-part (eg. [1.0.0.127])
#   Not accepted is comments (eg. (this is a comment)@example.com)
# Extra:
#   topLevelDomain can only be one of the defined ones
define("EMAIL_ADDRESS_VALIDATION_LEVEL",2);

# Time Zone
# By default phpList will operate in the Timezone of your server. If you want to work
# in a different Timezone, you can set that here. It will need to be a valid setting for
# both PHP and Mysql. The value should be a city in the world
# to find PHP timezones, check out http://php.net/manual/en/timezones.php
# You will also need to tell Mysql about your timezones, which means you have to load the timezone
# data in the Mysql Database, which you can find out about here:
# http://dev.mysql.com/doc/refman/5.0/en/mysql-tzinfo-to-sql.html
# make sure that the value you use works for both PHP and Mysql. If you find strange discrepancies
# in the dates and times used in phpList, you probably used the wrong value.

# define('SYSTEM_TIMEZONE','Europe/London');


# list exclude will add the option to send a message to users who are on a list
# except when they are on another list.
define('USE_LIST_EXCLUDE',0);

## message queue prepare
# this option will handle the sending of the queue a little bit differently
# it assumes running the queue many times in small batches
# the first run will find all subscribers that need to receive a campaign and mark them all
# as "todo" in the database. Subsequent calls will then work through the "todo" list and
# send them. This can be useful if the SQL query to find subscribers for a campaign is slow
# which is the case when your database is filling up.
# set to 1 to use
define('MESSAGEQUEUE_PREPARE',0);

# admin authentication module.
# to validate the login for an administrator, you can define your own authentication module
# this is not finished yet, so don't use it unless you're happy to play around with it
# if you have modules to contribute, open a tracker issue at http://mantis.phplist.com
# the default module is phplist_auth.inc, which you can find in the "auth" subdirectory of the
# admin directory. It will tell you the functions that need to be defined for phplist to
# retrieve it's information.
# phplist will look for a file in that directory, or you can enter the full path to the file

# eg
#$admin_auth_module = 'phplist_auth.inc';

# or
#$admin_auth_module = '/usr/local/etc/auth.inc';

# stacked attribute selection
# this is a new method of making a selection of attributes to send your messages to
# to start with, it doesn't seem to work very well in Internet Explorer, but it works fine
# using Mozilla, Firefox, Opera (haven't tried any other browsers)
# so if you use IE, you may not want to try this.

# stacked attribute selection allows you to continuously add a selection of attributes
# to your message. This is quite a bit more powerful than the old method, but it can also
# cause very complex queries to be constructed that may take too long to calculate
# If you want to try this, set the value to 1, and give us feedback on how it's going

# if you want to use dates for attribute selections, you need to use this one


## this functionality has been dropped from the core phpList system, but will be added
## using plugin functionality. 
define("STACKED_ATTRIBUTE_SELECTION",0);


# Public protocol
# phpList will automatically use the protocol you run the admin interface on for clicktrack links and 
# tracking images
# but if you want to force this to be http, when you eg run the admin on https, uncomment the below line
# see also https://mantis.phplist.com/view.php?id=16611
#define('PUBLIC_PROTOCOL','http');


# advanced bounce processing
# with advanced bounce handling you are able to define regular expressions that match bounces and the
# action that needs to be taken when an expression matches. This will improve getting rid of bad emails in
# your system, which will be a good thing for making sure you are not being blacklisted by other
# mail systems
# if you use this, you will need to teach your system regularly about patterns in new bounces
define('USE_ADVANCED_BOUNCEHANDLING',0);


# When forwarding ('to a friend') the message will be using the attributes of the destination email by default.
# This often means the message gets stripped of al its attributes. 
# When setting this constant to 1, the message will use the attributes of the forwarding user. It can be used
# to connect the destinatory to the forwarder and/or reward the forwarder.
define("KEEPFORWARDERATTRIBUTES",0);

# forward to friend, multiple emails
# This setting defines howmany email addresses you can enter in the forward page.
# Default is 1 to not change behaviour from previous version.
define("FORWARD_EMAIL_COUNT",1);

# forward to friend - personal message
# Allow user to add a personal note when forwarding 'to a friend'
# 0 will turn this option off. default is 0 to not change behaviour from previous version.
# 500 is recommended as a sound value to write a little introductory note to a friend
# The note is prepeded to both text and html messages and will be stripped of all html 
define("FORWARD_PERSONAL_NOTE_SIZE",0);

# different content when forwarding 'to a friend'
# Allow admin to enter a different message that will be sent when forwarding 'to a friend'
# This will show an extra tab in the message dialog. 
define("FORWARD_ALTERNATIVE_CONTENT",0);

# there is now support for the use of ADOdb http://php.weblogs.com/ADODB
# this is still experimental, and any findings should be reported in the
# bugtracker
# in order to use it, define the following settings:
#$database_module = 'adodb.inc';
#$adodb_inc_file = '/path/to/adodb_inc.php';
#$adodb_driver = 'mysql';
#$adodb_inc_file = '/usr/share/php/adodb/adodb.inc.php';
$adodb_driver = 'mysql';  // not really a site variable

    indent preformatted text by 4 spaces

If you wish to use your config-extended file, rename it config.php, ie, replace the default quick start config.php file.

Are you sure? I have phplist installed in other server and there settings are getting picked from config_extended.php

Absolutely positive.

Extract from the online Manual: https://www.phplist.org/manual/ch028_installation.xhtml

Config_extended.php

You may need to add some extra lines to your config.php. These extra
lines are ready made for you in config_extended.php, which is in the
same directory as config.php. Simply copy the lines you need and paste
them below the others in config.php

And on the original forums:Config V.s Config-extended files

Are you sure that you have not copied the relevant settings from config-extended.php into config.php?

That works :smile:
Thank you sir!