What is “Header From” spoofing?
"Header From" spoofing is a common email impersonation tactic where a malicious actor forges the visible "From" address of an email to appear as a legitimate sender.
DMARC
Domain-based Message Authentication, Reporting & Conformance (DMARC) is an essential standard for protecting your organization’s reputation and email authenticity. Our DMARC blog articles guide you through the nuances of implementing and managing DMARC policies to reduce email spoofing and phishing attacks effectively. Explore thought leadership articles, implementation guides, and success stories that demonstrate the positive impact of DMARC on organizational security, building a fortified trust relationship with your customers and partners.
Understanding SPF Lookup Count Limitations and Their Impact on Your Business
The Sender Policy Framework (SPF) is a crucial email authentication protocol that helps protect your domain from spoofing and phishing attacks. However, SPF has a significant limitation known as the "lookup limit," which can impact your email deliverability and business operations if not managed properly.
Choosing a DMARC service: managed or unmanaged?
At 101domain, we offer both managed and unmanaged DMARC solutions to cater to varied needs. But how do you decide which option is right for your business? Let's explore the differences between managed and unmanaged DMARC services to help you make an informed decision.
Real world cases of Business Email Compromise (BEC)
In the email-driven business world of today, Business Email Compromise (BEC) attacks are a formidable threat to enterprises worldwide. Let's take a look into three notable cases of BEC attacks and how you might learn from them.
How to stay out of spam in 2025: A friendly guide for your emails
In this short guide, we’ll touch on a few actionable ways to stay out of spam: quality email lists, SPF, and more.
OnDMARC vs. DMARCIAN: What’s the difference?
Implementing DMARC is essential for protecting your brand and enhancing email deliverability. But which service should you choose?
Frequently Asked Questions about DMARC
Email authentication can be a complex and technical topic. Here's our list of most commonly asked questions about DMARC as it relates to your email security protocol.
Common pitfalls in DMARC record syntax and configuration
Several common mistakes can lead to DMARC verification failures, undermining the intended security benefits. This guide is meant to serve as a reference for the most common errors in DMARC configuration.
Can DMARC prevent spoofing?
The answer is a resounding yes - provided that it is implemented comprehensively and monitored diligently. Here's how to do that.
All about DMARC reports
One major benefit of DMARC is receiving daily reports to show you what is happening with emails sent from your domain (or from those impersonating your domain.) However, if you’ve just set up DMARC for your domain, you might be confused by the mess of data hitting your inbox.