How to Prevent Email Spoofing with DMARC

How to Prevent Email Spoofing with DMARC
Email Security

28 July, 2020

DMARC: How to Prevent Email Spoofing

We have all received phishing emails from reputable companies some of which are very sophisticated but are in fact created by cybercriminals in order to gain access to sensitive information in order to steal or defraud. When a company falls victim to an email phishing attack a lot of things are suddenly at risk: blemished brand reputation, intellectual property is stolen, direct financial loss, etc. 

Email is one of the most important assets of modern organizations. Critical corporate functions including marketing, sales, customer support, internal communication depend on email heavily and any security breach can cause severe losses. Failing to secure your corporate email is like keeping a safe unlocked or a corporate bank account unprotected by a password thus vulnerable to all sorts of attacks.

DMARC ensures that legitimate emails are authenticated against SPF records and DKIM standards and can block emails that appear to come from domains controlled by these records unless they align correctly. Only if an email passes the relevant checks will it be delivered correctly because DMARC determines which email servers can send messages on behalf of any given domain.




Steps to Prevent Email Spoofing

DMARC is a true ally in an email world fraught with fraud and deception. By implementing DMARC your company’s emails are verified and deliverable while those not sent by you are met with suspicion and blocked. You can prevent or block email spoofing/phishing by implementing email authentication with modern email security measures namely SPF, DKIM, and DMARC. These are 3 protocols that serve as the holy trinity of email authentication and when deployed correctly they can put a complete stop to email spoofing attacks.

In the event that you are considering how anybody can send emails utilizing your email ID, it takes just a little alteration to these headers to make it show that the email originated from your email ID. Presently if you receive an email from your own email ID you will get inquisitive or stress if the ID is imperiled. While it is better to keep the password changing in most cases it may be just email spoofing. Here some steps to prevent email spoofing:

1) Safeguard your own data – utilize alert while accepting an email that requests individual data for example keeping a Banking account. Organizations don't convey messages asking for this kind of data.

2) Train yourself about spoofed messages

  • Look at the FROM address. Anything after the @ symbol ought to be the name of the authentic organization.
  • If you open the email, look at the URL and check whether it is indicating a real organization site.
  • Delete the message

3) Report suspicious messages to the organization being spoofed (Ex. A typical spoofed email as of late flowing is an email that appears as though it is from UPS however it contains invalid connections which may contaminate your PC)

4) Don’t reply, delete the message.

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