Queuing and management of emails

On OJS where is the overall email control for emails that are sent out to readers?

We added 10 years of archives and it seems that OJS has sent emails to everyone who requested to be notified by email for each issue that was published. All 60 issues!

Unfortunately, we have several hundred accounts who where either false signups or people who’s email addrress has expired. We are getting thousands of replies from the server like this one.


  1. How do we kill these emails before they try to be sent again? (Update, the return reply failure notices need to be killed in the sendmail queues. (In this case via plesk))
  2. What settings control how email is sent and when in notifications?
  3. How do we turn off failure notification?


Hi. This is the qmail-send program at ip-50-63-57-165.ip.secureserver.net.
I’m afraid I wasn’t able to deliver your message to the following addresses.
This is a permanent error; I’ve given up. Sorry it didn’t work out.

Sorry, I wasn’t able to establish an SMTP connection. (#4.4.1)
I’m not going to try again; this message has been in the queue too long.

— Below this line is a copy of the message.

Return-Path: anonymous@ip-50-63-57-165.ip.secureserver.net
Received: (qmail 23704 invoked by uid 10000); 29 Jan 2018 19:17:56 -0500
Message-ID: 20180130001756.23701.qmail@ip-50-63-57-165.ip.secureserver.net
To: melissa.toon@xxxx.org
Subject: [jom] New notification from Journal of Opioid Management
X-PHP-Originating-Script: 0:String.inc.php
Content-Type: text/plain; charset=“utf-8”
X-Mailer: Public Knowledge Project Suite v2
Date: Mon, 29 Jan 2018 19:17:56 -0500
From: “Mr. Richard A. DeVito, Jr.” radjr@xxxco.com
Reply-To: “Weston Medical Publishing” radjr@xxxpco.com

You have a new notification from Journal of Opioid Management:

An issue has been published.

Link: http://www.wmpllc.org/ojs-2.4.2/index.php/jom/issue/current

If you wish to stop receiving notification emails, please go to

Richard A. DeVito Jr

Journal of Opioid Management