In March 2026, during an internal routing test, a deliverability team of a European ESP discovers that their emails to Mailman mailing lists consistently fail DKIM checks, despite correctly configured…
Today, we are talking about magic links. Nothing truly magical in the literal sense, but a method of authentication that is increasingly popular. It’s undeniable that this type of link,…
Sending an email made entirely of images stays tempting for marketing teams under tight deadlines: one visual exported from Figma, dropped into the sending platform, and the job feels done.…
In 2025, 40% of emails never reached a visible inbox, according to tests conducted on millions of sends by the Unspam platform (January 2026). Among the causes: blocklists, these databases…
Unlike B2C, where emotion and impulsiveness can influence purchasing decisions, B2B relies on longer and more rational processes. Relationships are built on trust, expertise, and a deep understanding of client…
Email marketing is notoriously effective. A well-crafted message can significantly influence consumers and their purchasing decisions. However, for that to happen, said message must meet a myriad of criteria and…
Segmented SMS automations generate up to 30 times more revenue per recipient than broadcast campaigns, according to Klaviyo 2024 data on over 3 billion analyzed messages. Not because SMS inherently…
The email template, does that mean anything to you? If you thought that creating an email required sharp graphics or computer coding expertise, know that this is not necessarily the…
The SMS marketing continues to prove its effectiveness, especially when it comes to reaching consumers directly. With open rates of nearly 98% and average response times of less than three…
Your email never arrived. The server responded with 554 5.0.0, and that was it. No explanation. Just a permanent bounce. The real problem with this error: it’s intentionally vague. It…
Several protocols are used to manage the sending and receiving of emails. These protocols, though often invisible to end users, play a major role in the proper functioning of electronic…
You chose your email service because it was the one at the office. Or because the IT Director decided it ten years ago. But have you considered the real cost…
Wondering why Gmail sometimes truncates your email messages, thus hiding the content with a “Message Clipped” and “View entire message”? An unpleasant technique that prevents recipients from seeing the entire…
Transactional email is one of the important points of the email marketing strategy. It not only makes it easier to reach recipients than with a promotional message, but also helps…
Between 20% and 50% of an email database’s contacts are inactive at any given time. These addresses don’t just weigh down your statistics: they actively harm your sender reputation. Since…
Because current consumers mainly have their phone always at hand, SMS marketing has become essential. The high engagement rate, the increase in brand awareness and sales are among the many…
We were talking to you a few weeks ago about SMS Marketing and its many advantages for the company that adds it to its communication channels. But in order to…
CaptainVerify verified over 126 million email addresses in 2025. Only 57% were valid. On a list of 100,000 contacts, 43,000 can’t receive any message, yet most companies send them campaigns…
A bounce is a bit like a package returned to the sender: the message did not reach its recipient for some reason. However, where a simple address error can be…
Because deliverability is essential in an emailing marketing campaign, it is essential to use all the tools and techniques available to you to make your emails arrive well in the…
Technology evolves every day, as well as public preferences. One thing is safe, it is today the prime customization. In a context where marketing tools are more and more numerous…
In this blog, we often talk to you about emailing without having clearly explained what it is. That is precisely the goal of this article: to go back to basics…
It is well known that a company’s reputation is crucial. But what about its online reputation, or more specifically, its reputation as an email sender? If a significant part of…
A password reset email is sent out. It never arrives. No error message on the sender’s side, no bounce, no alert in your sending tool. Just silence. In some cases,…
Deliverability is crucial. As email marketing experts, you know that all your efforts to create engaging and attractive campaigns can be nullified if your emails do not make it to…
You have refined the object, content and design of your email, your list is ready, but did you think of the Pre-Header? Often forgotten or wrongly neglected, the header of…
A p=none policy blocks no message at all, while a poorly prepared p=reject blocks legitimate ones. Between the two, DMARC leaves the display name and lookalike domains out of scope,…
Conversational SMS is emerging as an essential tool for businesses. Conversational SMS goes far beyond the simple text message as it allows real-time, two-way interaction between brands and their customers.…
In a list of subscribers, there are always a number of inactive contacts. Indeed, once registered, some people will stop opening the communications you send them for X or Y…
For email marketing experts, the quality of leads is crucial, as it ensures the success of their campaigns. Indeed, bad leads, or low-quality prospects, can not only harm conversion rates…
There are many details to check and refine to maximize the chances of your emailing campaign even before it is sent. Among these, today we will talk to you about…
Before landing in the inbox, an email goes through several treatments that will make it possible to define if it is legitimate or not. Among these steps and processes, we…
The desktop versions of Outlook (2007-2019) utilize the Microsoft Word rendering engine to display HTML emails, which drastically limits support for modern web standards and creates recurring display issues. This…
What’s the difference between Cc and Bcc? Cc (Carbon Copy) adds visible recipients: every recipient sees who else got the message. Bcc (Blind Carbon Copy) adds hidden recipients: each Bcc…
With the arrival of the iOS 15 update in September 2021, Apple once again proved its desire to prioritize the confidentiality of the data of its users. The brand has…
The subdomain marthastewart.msn.com pointed by CNAME to msnmarthastewartsweeps.com, a domain nobody had owned for 21 years. In September 2022, someone bought it. From then on they controlled the DNS answers…
Although the sending of professional SMS is still unclear compared to other communication tools, it is very promising. Indeed, recent studies have shown that the vast majority of consumers prefer…
The Obiz© Group is a leading player in relational marketing, renowned for its innovative and responsible approach. For its B2B clients, the company designs and manages affinity programs and customized…
And if you were told that there was a legal, inexpensive and more or less easy way to get key information on a subject? This is what OSINT allows, a…
The SMTP 550 5.7.1 error is a response code from the Simple Mail Transfer Protocol (SMTP), indicating a permanent access denial by the recipient’s server. This Non-Delivery Report shows that…
Your Sender Score says 92 and Gmail still files your campaigns under spam: which one do you trust? Gmail. Sender reputation (also called email reputation) is the credit each mailbox…
Does a single “free” in the subject line send an email to spam? Almost never. Gmail and Yahoo filters add up signals: domain reputation, authentication, recipient complaints, message structure and…
Faced with the rise of mobile messaging, companies must choose between the universal simplicity of SMS and the enhanced interactivity of WhatsApp. In a context where customer relationships demand personalization…
Gmail returns the same full mailbox under two opposite codes: a temporary 452 4.2.2, and a permanent 552 5.2.2 when the account is also inactive (Google Workspace documentation, checked in…
Structuring an email strategy means combining operational efficiency with quality interactions. Email templates allow for automation while maintaining personalization, turning each customer interaction into a conversion opportunity. Let’s explore how…
Emailing is a very common marketing strategy, redoutably efficient and useful for building a long-term relationship with prospects as customers. CAUTION However, it’s a double-edged weapon that, if it’s badly…
Creating effective professional newsletters without depending on a developer or designer has become accessible to everyone thanks to email builders. These solutions are transforming how businesses design, personalize, and send…
Have you ever heard of the RCS? Considered as the SMS of the future, this evolution of text messaging offers not only an incredible interactivity, but also interesting features, thus…
Your open rate is dropping and nobody knows whether the copy or the inbox is to blame. How do you tell? An email gets read when two things are settled,…
Once is not customary, we speak to you here about email deliverability! A little-known but powerful tool to optimize this deliverability is Microsoft Smart Network Data Services (SNDS). If you…
As the light dims, activating dark mode becomes second nature on our screens. Dark mode has permeated our digital habits and is also changing the way emails are designed and…