DMARC


Not Receiving DMARC Aggregate and Forensic Reports? Here’s Why

Not Receiving DMARC Aggregate and Forensic Reports? Here’s Why

Not Receiving DMARC Aggregate and Forensic Reports? Here’s Why

by Duocircle

 

Did you know that there’s more to DMARC implementation than just the policies that determine what happens to emails that don’t pass authentication checks (SPF and DKIM)? It is the reporting feature of DMARC that sets the tone for the overall effectiveness of your email security strategy. DMARC reports offer comprehensive insights into how emails claiming to come from your domain are being handled by their recipients and the ones that fail DMARC, SPF, or DKIM validation, providing a clear view of both legitimate and fraudulent activities.

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The Journey of SPF, DKIM, and DMARC- The Three Fortifiers Against Phishing and Spoofing!

The Journey of SPF, DKIM, and DMARC- The Three Fortifiers Against Phishing and Spoofing!

The Journey of SPF, DKIM, and DMARC- The Three Fortifiers Against Phishing and Spoofing!

by Duocircle

 

DMARC has already gained the attention it deserves, owing to its efficiency in combatting phishing and spoofing attacks. But the journey wasn’t fast and steady from the beginning. It all started when SPF came into play, followed by the amalgamation of Yahoo’s DomainKeys and Cisco’s Identified Internet Mail (IIM). This blog covers the journey of all three email authentication protocols in detail.

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What is the DMARC ‘sp’ Tag for Subdomains?

What is the DMARC ‘sp’ Tag for Subdomains?

 

Domain owners with multiple subdomains expose their businesses to phishing and spoofing attacks, which underscores the importance of protecting them with DMARC. Generally, domain administrators only deploy SPF, DKIM, and DMARC for the main domains, leaving unsecured subdomains to be the ideal entry points for threat actors. That’s why all your subdomains should have a quarantine or reject policy, with the percentage parameter ideally set to 100.

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Causes and Solutions of DMARC Failures

Causes and Solutions of DMARC Failures

 

DMARC failure reports give insights into why emails failed DMARC checks and show where the trouble is to help you fix it. Invalid DMARC records fail to filter out phishing and spoofing emails. So, ensure your SPF and DKIM settings are correct, address alignment issues, and manage subdomains carefully.

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DMARC For Shopify Users

DMARC For Shopify Users

 

DMARC isn’t a new regime; however, regulations and email service providers have now made it mandatory. This exercise is meant to reduce phishing and spoofing by filtering genuine and fraudulent emails. DMARC works in accordance with SPF and DKIM to instruct recipients’ servers to either reject or mark illegitimate emails as spam, reducing the likelihood of victims engaging with such emails and getting manipulated. 

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How does Microsoft 365 Manage Inbound Email Messages that Don’t Pass the DMARC Checks?

How does Microsoft 365 Manage Inbound Email Messages that Don’t Pass the DMARC Checks?

How does Microsoft 365 Manage Inbound Email Messages that Don’t Pass the DMARC Checks?

by Duocircle

 

Microsoft refrains from rejecting emails that don’t pass the DMARC checks even if the sending domain’s DMARC policy is set to ‘p=reject.’ This is because it is considerate of the legitimate emails that get false positives. So, to avoid disrupting genuine conversations, Microsoft takes a different route.

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Microsoft’s 000 Reason for Email Failure With DMARC

Microsoft’s 000 Reason for Email Failure With DMARC

 

If you notice outgoing emails going to spam folders of only Outlook recipients and reflecting a ‘000’ reason, then it means your messages failed DMARC with ‘quarantine’ or ‘reject’ effects. You are likely to see the following snippet from the headers of email messages getting dumped in the spam folders-

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DMARC Relaxed Vs Strict Alignment

DMARC Relaxed Vs Strict Alignment

 

 

Domain-based Message Authentication Reporting and Conformance or DMARC alignment verifies that an email message’s ‘From’ header domain aligns with the authenticated domain used in the DKIM and SPF protocols. There are two DMARC alignment modes: SPF identifier alignment and DKIM identifier alignment.

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The Silly Case of Unenforced DMARC

The Silly Case of Unenforced DMARC

If you have any kind of alarm in your home, like a smoke detector or burglar alarm, you probably don’t think about how it works very often. As it turns out, every alarm, to be effective, actually has to do two things: it has to sense something bad and then it has to take action. In most cases, that action is to blast a really loud signal. Loud enough to wake you up from a sound sleep.

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Yahoo DMARC Update 2016

Yahoo DMARC Update 2016

You may already know that Yahoo.com has a DMARC policy in place that prevents mail with yahoo.com in the from address from being delivered if it is sent from outside Yahoo’s infrastructure.

Yahoo is expanding this policy to their lower-volume Yahoo international domains below on Mar 28, 2016.

The list of domains that will become unusable is as follows:

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What is DMARC and Does It Protect Email Recipients From Fraud?

What is DMARC and Does It Protect Email Recipients From Fraud?

Discover how an innovative approach to email security protects against phishing

What if there was a way to protect your brand from bad actors using your email address for fraudulent activity?

It’s a well-known fact that cybercriminals impersonate trusted contacts in order to commit fraud. In fact, 70 percent of all email fraud is sent from a domain name that doesn’t match the one named in the email header.
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Gmail DMARC Update 2016

Gmail DMARC Update 2016

Google is constantly trying to fight both incoming and outgoing spam. Incoming spam is easy to combat because you can build tools and software at the gateway to manage and mitigate these vectors, however until now Google has allowed people to send email with an @gmail.com email address from any ISP’s server.

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