Laposte.net’s 2025 email authentication shift: strategic insights and implementation best practices for enterprises
by DuoCircle
La Poste, France’s leading email service provider, which serves millions of users with private email addresses, has introduced mandatory email authentication requirements starting in September 2025. Now, what this means is that every email sent to Laposte.net addresses must pass SPF, DKIM, and DMARC authentication checks. If the senders don’t adhere to this, their emails will be relegated directly to spam.
Think of brands like Samsung, eBay, Amazon, and Hulu. These brands are undoubtedly some of the biggest names in their respective industries and have been around for years, which means you can easily trust them with your personal information and data without a second thought.
DMARC for GDPR and data privacy compliance: Why email authentication matters for protecting PII?
by DuoCircle
When it comes to data privacy, the GDPR is clear about its goal: it wants organizations to protect personally identifiable information (PII) at every stage of processing and communication. And as you already know, DMARC is a mailbox gatekeeper that authenticates emails and prevents threat actors from misusing your domain.
Understanding all the elements of a valid DMARC record
by DuoCircle
DMARC prevents threat actors from impersonating you or someone from your organization and sending spoofed emails on your behalf. However, it’s not easy to set up, manage, and adjust DMARC to ensure this prevention. One of the challenging aspects of DMARC is understanding the syntax and its use case scenarios; otherwise, your DMARC record can run into errors.
If you’ve ever dealt with email security, chances are you’ve heard of DMARC—short for Domain-based Message Authentication, Reporting & Conformance. But what exactly does it do, and why should you care? Well, imagine your email domain is your digital storefront, bustling with clients and sensitive communications. Without proper email authentication, it’s like leaving your front door wide open to spoofers and phishers who can impersonate your brand, wreak havoc, and tank your email domain reputation.
DMARC alignment basics: Ensuring SPF and DKIM work together
by DuoCircle
DMARC alignment is the final checkpoint that ensures SPF and DKIM are not present for the sake of it, but are actually configured correctly and linked to your sending domain. This is done by verifying that the domain in the email’s visible ‘From’ address matches (or is aligned with) the domains used in SPF and/or DKIM authentication.
How can real estate companies protect their emails with DMARC?
by DuoCircle
The real estate industry has evolved to be as digitally driven as any other industry, like finance and retail. From property listings to deal closures, everything happens online. Although it has made things a lot easier for the agent, seller, and buyer, this digital shift has also opened doors to cyberattackers.
DMARCbis adoption: what IT leaders, CISOs, and domain owners need to know
by DuoCircle
The stronger and better DMARC2.0 is almost here. This upgraded, tighter version aims to combat the growing menace of email-based phishing and spoofing attacks, especially the ones powered by artificial intelligence.
How can the finance sector leverage DMARC to defend against email fraud?
by DuoCircle
The finance sector thrives on trust. The fact that your clients are putting their hard-earned money in your company or institution shows that they not only have confidence in your financial products or services, but also that they believe you have the ability to keep their assets and data safe. But, truth be told, their money and data aren’t really safe unless you actively protect them.
How do third-party marketing agencies send emails on behalf of clients while staying
by DuoCircle
It is a common practice for businesses to delegate marketing tasks to third-party agencies. Working with these marketing agencies brings in added benefits such as specialisation in particular niches and cost-effectiveness. These agencies need to take extra care to ensure their emails don’t end up in the spam folder or get rejected.
DMARC policy transition strategies for global banks: Moving to quarantine and reject safely
by DuoCircle
DMARC has now become a non-negotiable for every organization that sends bulk emails on a daily basis. It is even more critical for banks, where the stakes are so high that it’s not merely about money, but also sensitive data of their customers, regulatory compliance, and the integrity of their brand.
Using the DMARC reject policy for non email sending domains: A guide
by DuoCircle
You might think that only your active domain (the one that you use to send emails) is vulnerable to spoofing and phishing attacks. But the truth is, there is more than one way that attackers use to intercept your systems, and often they are the ones you least expect. That’s the reality of email-based attacks; they not only exploit your primary, active domain, but also make backdoor entries through non-email-sending domains and parked domains. The reason cybercriminals go after the parked domains, instead of active ones, is that the former are often overlooked. It is easier to think that the attackers might not even pay heed to the inactive ones, but they know that these dormant ones are low-hanging fruit.
What is a DMARC analyzer tool, and how to use it in the best way?
by DuoCircle
If you are planning to secure your business email communications by deploying email authentication policies such as SPF, DKIM, and DMARC, know that this is just the tip of the iceberg. In order to ensure fool-proof security for your email landscape, you must use a DMARC analyzer tool. With its help, you get to evaluate DMARC reports closely, thereby bolstering the email system.
The 32KB limit in DMARC reports: What it means and why it matters
by DuoCircle
Has it ever happened to you that you sent around 500,000 emails a day but only received DMARC reports for half of them? That too, without any alerts or warnings?
How to fix the “DMARC policy not enabled” error- Everything you need to know!
by DuoCircle
If you have stumbled upon this blog, then it is highly likely that you are dealing with the issue of the “DMARC policy not enabled” error. You get this message when your domain has a DMARC record, but there is no valid policy to define it. A DMARC record makes no sense without a DMARC policy. It’s like having a front desk guard in your building who smiles and nods, even when strangers walk in. Hence, the moment this message appears, you must understand that your email system is no longer protected against phishing and spoofing attacks.
How are Gmail and Outlook policies raising the bar for DMARC adoption?
by DuoCircle
There was a time when email security was a mere IT concern; it was a good-to-have but wasn’t really a priority. We are referring to a time when email-based threats were not as prevalent or dangerous as they are today. It might sound like we are talking about a distant past here, but that’s the reality. You can no longer put email security on the back burner, thinking that your emails will protect themselves or that cybercriminals will never reach you.
Cloudflare’s new SPF, DKIM, and DMARC requirements
by DuoCircle
Starting July 3, 2025, Cloudflare requires all emails to be authenticated using at least one of the protocols. SPF or DKIM, to forward them. This requirement has been imposed in consideration of the growing number of email-based phishing and spoofing attacks. These email authentication protocols ensure that only authorized emails reach the inboxes of recipients, thereby preventing them from being manipulated into transferring money or sharing confidential information.
DMARC is now mandatory in New Zealand: Here’s what the NZ government expects
by DuoCircle
Most countries have already made DMARC enforcement mandatory, especially for government agencies (after all, that’s where the real threats lie). But New Zealand wasn’t on this list until now!
When it comes to B2B and B2C business communications, email plays a crucial role as a core communication channel. From running marketing campaigns to offering customer support, from notifying customers with transactional details to engaging them one-on-one with newsletters and emails, they do it all for your business.
But what if these emails do not reach your audience at all? Poor email deliverability can not only affect your day-to-day business operations but also tarnish your brand reputation. This is exactly why you need DMARC to enhance your email deliverability.
Let’s find out how your email deliverability is dependent on DMARC.
Cold emailing is a strategic and effective way for businesses and service providers to reach potential clients, pitch their best offers, and generate high-quality leads. However, with so much noise surrounding AI chatbots, funnel automation, and generative AI, cold emailing no longer works the way it did five years ago. Two major factors that determine the fate of your cold emails are trust and deliverability. Without these two, cold emailing in 2025 may feel like a lost cause.
