Home :: Web Design Blog

Stop spoof emails immediately

Posted:

What is spoofing?

Spoofing refers to fraudulent e-mail activity in which the sender’s address and other sections of the e-mail header are altered to appear as though it originated from a different source.

How to stop spoof email, ie. spoofing?

There is no actual way to stop spoofing except to delete the messages as they arrive. To achieve this, you can create a filter that will delete messages based on predefined values in the email message header. In our case, we set the header to delete messages sent from the MAILER-DAEMON address.

What is a mailer-daemon address?

A mailer-daemon address is used to process bounce messages. In other words, messages that have not reached a recipient. A bounce message (or failed Delivery Status Notification (DSN) message) is an automated electronic mail message from a mail system informing the sender of another message about a delivery problem. The original message is said to have bounced. By filtering out and deleting all messages from the mailer-daemon on your server that processes these messages as they arrive, you should prevent your mailbox from filling up and potentially having your account suspended for going over your disk space quota.

I’m going to explain how to filter spoof messages in Horde, a common webmail utility used in the cPanel interface. A similar approach should be available to set filters in any server/ webmail environment.

How to filter and stop spoof emails in Horde (cPanel)

  1. Login to Webmail for your email account (ie. log into cPanel and click on the Webmail icon)
  2. Click on the filters icon towards the top of the screen.
  3. Select “New Rule”
  4. Name your rule something like “Stop Spoofs”
  5. Under For an incoming message that matches: select “All of the following”
  6. Under the “Select a field” drop-down, select “From”
  7. The next drop-down should have “Contains”
  8. In the field type your mailer-daemon email address (you can find this by examining the full message headers of one of your spoof emails – look for the value next to the “From” field).
  9. Under “Do this” select “Delete message completely”
  10. Select “Stop checking if this rule matches”
  11. Click the “Save” button

You can move the filter to the top of the filter list so that it is executed first (before any other filters).

Press the [Apply Filters] button to run the filter on your current inbox.

Hey, presto! 🙂 You should have halted the relentless onslaught of spoofed email messages. Any new spoof email messages that arrive will be immediately deleted.

NB. You can reverse this at any time by deleting the rule.

Stop spoof emails immediately
Need More Information?

Free website migration service when you host with us

Website Health Check

Is Your Website Responsive?
We test to see if your website renders correctly on mobile phones and tablets with different screen sizes, making it a desirable experience for users on mobile devices

Does It Load Quickly?
If your website is slow to load users may get frustrated and leave. A faster website means a much better experience for your customers

Is It Easily Found?
Keeping your SEO up to date means search engines will rank your website higher therefore more potential customers see your website.

“We have been a customer of Andrew Talbot Design Limited for several years who primarily hosted our own design web site which of late was becoming dated and in obvious need of an upgrade to meet the demands of ever-changing technology. Andrew produced our new webshop which has proved easy to update and most importantly offers our customers to complete their purchases with complete confidence. Our many questions throughout the development were always met with a quick, positive response which as always continues.”

Ron Heath – Floral Mechanics

Contact Us

Email Direct

+44 (0) 117 927 3300

Get A Callback

Follow Us

FaceBook Twitter Instagram

Stay Safe.

Made for sharing

Good To Go England
© 1999 - 2021 Andrew Talbot Design Limited.
Registered in England and Wales No. 05737190.
Ashton Hill Farm, Weston Road, Failand BS8 3US.

Terms of use / Privacy policy / Cookie policy / Work for us

Secured by PayPal UKWDA The UK Web Design Association Valid CSS!