PHP script to monitor exim mail queue

When you run exim mail server, it is good to keep an eye on number of emails in mail queue. here is a PHP script that will check number of emails in queue, if it exceed pre-set number, it will email you.

Create file

mkdir /usr/serverok/
vi /usr/serverok/mail_q_monitor.php

1 2	mkdir /usr/serverok/ vi /usr/serverok/mail_q_monitor.php

Add following content.

<?php
# Author: ServerOk Software
# Email: admin@serverok.in
# Web: https://serverok.in

$cmd =  '/usr/sbin/exim -bpc';
$num_mails = exec($cmd);
$adminEmail = "you@your-domain.com";
$alertOn = 100;

if ($num_mails > $alertOn) {
    $hostname = exec('/bin/hostname');
    $subject = 'Mail queue alert on ' . $hostname;
    $mail_text = 'Mail queue on server ' . $hostname . ' have ' . $num_mails . ' mails';
    mail($adminEmail, $subject, $mail_text);
}

<?php

# Author: ServerOk Software

# Email: [email protected]

# Web: https://serverok.in

$cmd = '/usr/sbin/exim -bpc';

$num_mails = exec($cmd);

$adminEmail = "[email protected]";

$alertOn = 100;

if ($num_mails > $alertOn) {

$hostname = exec('/bin/hostname');

$subject = 'Mail queue alert on ' . $hostname;

$mail_text = 'Mail queue on server ' . $hostname . ' have ' . $num_mails . ' mails';

mail($adminEmail, $subject, $mail_text);

}

In this case, if mails in queue exceeded 100, you get email.

$alertOn = 100;

1	$alertOn = 100;

You can change 100 to whatever number you need.

$adminEmail = "you@your-domain.com";

1	$adminEmail = "[email protected]";

Replace [email protected] with your email address.

Set script to run every 10 minutes using cronjob

*/10 * * * * /usr/local/bin/php /usr/serverok/mail_q_monitor.php >/dev/null 2>&1

1	/10 * * * /usr/local/bin/php /usr/serverok/mail_q_monitor.php >/dev/null 2>&1

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