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…
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 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: itโs intentionally vague. It…
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…
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…
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…
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…
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…
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.…
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…
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…
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…
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…
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…
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…
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,…
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…
The most reliable way to identify the sender of an unknown email combines a reverse search across search engines and social networks with a technical check of the address itself.…