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November 2024
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manage Postfix mail queue

This post will show a simple perl tool to manage (delete) one or more message in Postfix mail queue.

The main script to use is delete-mailq.pl
Create a file called delete-mailq.pl in /usr/local/bin with the the following content :

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</pre>
#!/usr/bin/perl -w
# Postfix mailq cleanup utility
$REGEXP = shift || die "no email-adress given (regexp-style, test.*@example.com)!";
@data = qx</usr/sbin/postqueue -p>;
for (@data) {
if (/^(w+)*?s/) {
$queue_id = $1;
}
if($queue_id) {
if (/$REGEXP/i) {
$Q{$queue_id} = 1;
$queue_id = "";
}
}
}
open(POSTSUPER,"|postsuper -d -") || die "couldn't open postsuper" ;
foreach (keys %Q) {
print POSTSUPER "$_n";
};
close(POSTSUPER);
<pre>

Assign it correct ownership and permission with the following commands :

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</pre>
chown root:root /usr/local/bin/delete-mailq.pl
chmod 700 /usr/local/bin/delete-mailq.pl
<pre>

You should run the file directly passing the variables directly on comand line, or you should (and I prefer) create another file in /usr/local/bin called clean-mailq.sh with the following content :

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</pre>
#!/bin/sh
if [ -z $1 ]
then
echo "Insert the E-Mail address or a string to find it in mailqueue and delete it"
read STRING
else
STRING=$1
fi
/usr/local/bin/delete_mailq.pl $STRING
<pre>

Assign it correct ownership and permission with the following commands :

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</pre>
chown root:root /usr/local/bin/clean-mailq.sh
chmod 700 /usr/local/bin/clean-mailq.sh
<pre>

At this time, you should execute /usr/local/bin called clean-mailq.sh as root and pass the value to find and to delete from mail queue.

Hope this help

Bye
Riccardo

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