What can be done to stop this spam?

I am receiving around 30-50 or more emails every day. They are all titled "Mail delivery failed: returning message to sender".

Can someone tell me how to stop it without clicking on their link? I have use "spamitback" software but it does not seem to have an effect.

The text of the messages very a bit but most are as follows(References to me have been replaced with ########)...

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

[email protected]
SMTP error from remote mail server after RCPT TO:[email protected]:
host aspmx.l.google.com [74.125.47.26]: 550-5.1.1 The email account that you
tried to reach does not exist. Please try
550-5.1.1 double-checking the recipient's email address for typos or
550-5.1.1 unnecessary spaces. Learn more at
550 5.1.1 http://mail.google.com/support/bin/answer.py?answer=6596
i27si431543yhm.67

------ This is a copy of the message, including all the headers. ------

Return-path: <#######>
Received: from #### by gator1337.hostgator.com with local (Exim 4.69)
(envelope-from <#####@#######>)
id 1R98qD-0000iL-7W
for [email protected]; Thu, 29 Sep 2011 00:07:25 -0500
To: [email protected]
Subject: Your friend Marketing Genne has recommended this great product from ########
X-PHP-Script: #########/index.php for 112.201.224.0
Date: Thu, 29 Sep 2011 00:07:25 -0500
From: Marketing Genne <######@##########>
Reply-to: Marketing Genne <camelle######################>
Message-ID: <696e6d8b3c9e6fdf1b75d0582f71baf8@#########>
X-Priority: 3
X-Mailer: PHPMailer [version 1.73] via Zen Cart
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="iso-8859-1"

Hi marketer!

Your friend, Marketing Genne, thought that you would be interested in Third
Reich WWII German Army BEVO Breast or Nazi Tunic Eagle from Early 1900
Photos.

Marketing Genne sent a note saying:

Hey-

Have you seen this yet?

http://truebusiness.co.cc/[email protected]

You have no time to waste.

An underground affiliate currently banking
as much as $511,512 a DAY is finally speaking
out. Go immediately...

http://truebusiness.co.cc/[email protected]

Talk soon,

Patricia Gibbs
USA

PS No time for a PS. You just need to see this:

http://truebusiness.co.cc/[email protected]

click the link below to unsubscribe:
http://truebusiness.co.cc/[email protected]

1. what is your site, and do you have the "tell a friend" button turned on?

https://www.early1900photos.com. Yes, tell-a-friend is on. Is that a bad thing? If so, where do I turn it off?

Yes "tell a friend" is basically an open door to spammers.

You have a number of options

https://www.zen-cart.com/tutorials/index.php?article=50

you can set it to only being available for registered members, However there has recently been a massive surge in bogus registrations so spammers can access this functionality.

You can try installing a captcha on that page, or the recommended course is to turn it off completely and rename the "tell a friend" folder, as even when it is turned off it is still accessible by registered users

Post 2 in this thread should help

http://www.zen-cart.com/forum/showthread.php?t=112621

Thanks. But when I tried to also eliminate the "WRITE A REVIEW" button as the instructions say, I see that "side boxes controller" already shows that function turned off...

sideboxes/reviews.php OFF LEFT 40 0 OFF

But it is not turned off according to the button on my products pages.

sofasurfer:

Thanks. But when I tried to also eliminate the "WRITE A REVIEW" button as the instructions say, I see that "side boxes controller" already shows that function turned off...

sideboxes/reviews.php OFF LEFT 40 0 OFF

But it is not turned off according to the button on my products pages.

You shouldn't need to turn write a review off unless you want to.

The button on that page isn't controlled by the sidebox

its this bit of that tutorial

Product Information Pages
You can enable/disable various options at the per-product-type level:

1. Open your Admin.
2. Put the cursor over Catalog on the top menu.
3. Choose Product Types from the dropdown.
4. Choose Products General (or the product type you are customizing).
5. Click Edit Layout and turn off any settings you do not want to display.

The settings for Reviews and Tell-A-Friend on this screen are related to the corresponding buttons that appear on the product-information page (for each product).

from https://www.zen-cart.com/tutorials/index.php?article=50

Thank you!
Help me a lot same spammers were attacking me.
:clap::clap::clap:

I was curious about all of the fake new users that started recently, but had no idea what they were making so many accounts for. Now it all makes sense. Thank-you

I have the same issue - is there anyone out there who I could call on the phone for some basic answers to use of ZenCart?