Mailjet blog
Deliverability
Everything you need to start building connections that matter.
What is the return-path email header and why do you need to customize it?
Have you ever sent an email that mysteriously vanished into the digital abyss? You hit send, but crickets. No reply, no bounce notification, just...silence. Frustrating, right? It’s likely, then, that you haven’t got a little-known (but extremely important) part of your...
Read more
All you need to know about transactional email
Whether you're a small business, a non-profit, or a fast-growing startup, transactional emails play a critical role in shaping your customers' experience and perception. All you have to do is look at the numbers: studies show 93% of people say they would...
Read more
How can email marketers increase brand trust in a cluttered inbox?
Getting subscribers to open your emails can be challenging enough. You pour your heart and soul into crafting the perfect campaign only to see it left unopened or worse, sent straight to the spam folder. But what if the problem isn't your content or offering? It could...
Read more
What is the Gmail automated unsubscribe feature?
Ah, email, the final communication frontier. From the early days of AOL to today’s large-scale email-related services, clients, and more, it has undoubtedly changed our lives and evolved over the years. One of those email actors leading the way when it comes to...
Read more
Email authentication: What you need to know about DMARC, SPF, DKIM, and BIMI
Sometimes the world of emails can seem like a digital Wild West; with scam bandits, fraudsters, and phishers lurking behind every whiskey-stained saloon. However, armed with the right tools and knowledge, you can don the proverbial sheriff's badge and...
Read more
Understanding new sender requirements: A fireside chat with Yahoo & Google
Now that we’ve officially rolled into 2024, it means Google and Yahoo’s email authentication changes are coming into effect. But what does this really look like for email senders? How is it going to impact you directly? And what will need to be implemented to...
Read more
Email headers: What are they and how to read them
Hands up if you heard someone talk about email headers but had no idea what they were. Or, even worse, maybe your technical team asked you to send them the full header of your email, and you’re frantically looking for it everywhere. In this post, we’re going to tell you...
Read more
Breaking down a DMARC record: What it is and how it looks like
DMARC authentication is hard – we know it. For many email senders, the technical complexities of DMARC are just enough of a headache to put it off until it becomes an absolute must in the world of email. Well, that time has come. Gmail and Yahoo have...
Read more
What is DMARC and how does it work
Mailbox providers have gotten pretty good at spotting – and eliminating – dangerous, unwanted emails. But some spam still gets through. These messages have the potential to do damage to both individuals and companies. That’s why email authentication has...
Read more
Deliverability tips to avoid the spam folder this holiday season
The holiday season is almost upon us, which means marketers – especially those in retail – will soon start to increase their sending frequencies and will also widen their nets to reach out to as many contacts as possible. At Sinch Mailjet, we expect to see very high...
Read more
Why email deliverability issues will ruin the customer experience
You know that feeling when you’re anxiously waiting for an important package to arrive, but it doesn’t show up at the time you expected or maybe even needed it? That's frustrating. Many of your customers feel the same way when deliverability problems prevent email...
Read more
Gmail and Yahoo’s 2024 inbox protections and what they mean for your email program
As marketers, we should be the first to care about sending valuable, relevant emails to our contacts. Ultimately, email’s efficiency as a marketing channel depends on our recipients’ overall inbox experience. More unwanted emails mean more competition and less...
Read more
Keep me posted! Get our news and tips every week.
What do marketers need to know about email deliverability?
What does the term “email deliverability” mean to you? The truth is...there’s a lot more to it than simply getting messages delivered. If you think of email deliverability as the best practices you follow to avoid the spam folder and blocklists, you’re getting closer. But...
Read more
How to avoid email spam filters
So, you're sick and tired of hearing about your beautiful emails landing in spam? We're glad you checked in. If you’re responsible for your organization’s email campaigns, you’re probably constantly thinking about how to avoid spam filters, spam words, and always...
Read more
Unsubscribe link: Why it’s critical for your email marketing campaigns
We’ve spoken many times about building a contact list as one of the main steps in your email marketing strategy. We have also often repeated how important it is for you to have a clean list. In fact, you’re probably a bit tired of hearing all about it by now. We get it. But...
Read more
Gmail Promotions tab: A guide to optimize email delivery
The Gmail Promotions tab’s hot debut in 2013 caused mixed reactions. Some marketing pundits predicted that it marked the end of email marketing as we know it. Others were less dramatic and just stated that it would have a negative impact on the opens and clicks of...
Read more
Email file sizes: How big is too big?
Bigger isn’t always better for email marketers – especially when it comes to email file sizes. Trying to stuff large images or send big HTML files can hurt your email engagement and deliverability. So how big is too big for email file sizes? Is it time you put your email...
Read more
Single vs. double opt-in: Which one should you use?
If you’ve been using single opt-ins for a while, the idea of double opt-ins may seem a little daunting. You’re effectively doubling the number of steps a user takes before their added to your lists. And this can be a little scary for most email marketers whose KPIs are...
Read more
DKIM setup: How to create, configure, and set up DKIM in 3 easy steps
You didn’t become an email marketer because you wanted to dive into complicated code all day. Ugh. And when you hear all these weird sounding acronyms like DKIM, SPF, and DMARC, your first instinct is probably to run for the hills. But then, when you encounter...
Read more
Buying email lists doesn’t guarantee improved results
When your business is just starting out, you want to feel as if you’re doing all you can to grow your customer base. Stories like Harry's gathering 100,000 email signups in one week are inspiring, but they can pressure you to frantically check how to grow a contact list...
Read more
Noreply email address: Best practices for your email strategy
Have you ever tried to contact a brand to get them to stop sending you emails, only to get back an automated reply that says your email failed to be delivered? If you have, you’ve met the villain of our story: the noreply email address. Noreply addresses are the brick...
Read more
Email spoofing: How brand impersonation really works
Celebrity impressions are hilarious. Who doesn’t love a good Sean Connery or Marlon Brando impersonation? But when bad actors impersonate your brand through email spoofing, it’s no laughing matter. Because email is such a personal and trusted...
Read more
Email list cleaning: Complete your chores before playtime
If we take a trip down memory lane (some of our lanes might be longer than others), we might remember our parents telling us if we didn't tidy our bedroom or help clean the dishes, we couldn't play with friends or go to a movie. Let's face it, none of us wanted to...
Read more
8 ways to avoid ISP Blocklist
The Internet Service Provider (ISP) blocklist is probably your worst nightmare. Ending up on the blocklist is like having your domain name and IP address kicked out of the club, dropped from the mail server, and locked behind a firewall. (Plus, they threw away the...
Read more