Blog
Stay up-to-date with the latest tips, strategies, and insights to improve your email marketing efforts. Our blog covers everything from boosting deliverability to crafting effective campaigns, helping you get the most out of your email communication.
Whether you are just getting started with email marketing or looking to refine an established strategy, our articles provide actionable advice grounded in real-world experience. We break down complex topics – such as sender reputation management, DKIM and SPF configuration, list hygiene best practices, and GDPR compliance – into clear, step-by-step guides that you can implement right away. You will also find in-depth analyses of the latest industry trends, including AI-powered personalisation, interactive email design, and advanced segmentation techniques that help you deliver the right message to the right audience at the right time.
Beyond technical know-how, we explore the creative side of email marketing: writing subject lines that spark curiosity, designing mobile-responsive templates that look great on every device, and building automated workflows that nurture leads while you focus on growing your business. Each article is crafted to give you a competitive edge – backed by data, enriched with examples, and designed to save you hours of trial and error. Dive in, bookmark your favourites, and let MailCraft be your partner on the path to higher open rates, stronger engagement, and measurable ROI.
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Email segmentation & personalization
AND, OR, NOT Segmentation: Building a Segment Step by Step
Segmentation is not an extra feature in a sending tool. It is the decision about who gets the message and why that person specifically. Three logical operators –...
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List management
CSV Import With Field Mapping Without Wrecking Your List
A CSV import with field mapping looks like a technical, boring chore. Right up to the moment it breaks the list the whole company’s communication rests on. A...
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List management
Address verification without sending an email
Verifying an address without sending an email is not one call to one API. It is a sequence of tests: syntax, DNS, MX records, an SMTP dialog cut...
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Business growth strategies
Migrating from Mailchimp Step by Step
Migrating from Mailchimp is a technical project. Not a matter of clicking export and import. We see it every time a client moves a list onto our fleet...
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Email marketing
REST API: Your First Request in Ten Minutes
Your first request to a sending REST API takes less time than setting up a mail client. Seriously. You need a key, a verified domain and one command...
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Email marketing
PrestaShop Module: Shop Customers on Your Mailing List
Moving shop customers onto a mailing list is a job a PrestaShop module does more quietly and more accurately than a person with a spreadsheet. A CSV export...
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Email marketing
WordPress Plugin: Form Signups Straight to Your Mailing List
The typical setup looks like this: the form sits on WordPress, the address list lives in a completely different system, and a person with a CSV file shuttles...
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Deliverability best practices
Gmail and Yahoo Requirements for Bulk Senders
The Gmail and Yahoo requirements for bulk senders have been in force since 2024 and they are not a set of best practices. They are the entry condition...
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Deliverability best practices
Twelve reasons your emails land in spam
Filtr antyspamowy nie ocenia treści, tylko nadawcę Maile lądują w spamie głównie z powodów technicznych. Nie przez słowo “promocja” w temacie. Nie przez wykrzyknik, nie przez czerwony przycisk...
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Email deliverability
DNSBL blacklists: how to check and how to get delisted
Blacklisty DNSBL potrafią zatrzymać wysyłkę w kilka minut i zwykle robią to bez ostrzeżenia. Prowadzimy własną flotę serwerów wysyłkowych, więc wpisy na listach widzimy regularnie. Raz z winy...
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Email marketing
Myth: More Emails Mean More Engagement – Here’s What Actually Converts
Sending more emails feels like the obvious move. More volume, more eyeballs, more clicks – right? Wrong. There are 361.6 billion emails flying around every single day, up...
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Campaign analytics
7 Proven Ways to Convert Email Marketing Into Real Engagement
At Mailcraft, the inbox we open every morning tells the same story. It’s crowded. It’s competitive. And it still makes a ridiculous amount of money. Email still returns...
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Email deliverability
New IP warmup: a realistic eight-week plan
Nowe IP nie ma przeszłości. Filtry oceniają nadawcę po tym, co robił wcześniej, a nie po tym, co sobie wpisał w nagłówkach. Dlatego warmup nowego IP to nie...
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Deliverability best practices
List-Unsubscribe and one-click unsubscribe
The List-Unsubscribe header is one line in the message source that decides whether the recipient clicks “unsubscribe me” or “this is spam”. Mailbox providers read it and draw...
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Email marketing
How Do You Run a Newsletter That People Actually Read?
361.6 billion emails get sent every day. Every. Single. Day. And most of them? Nobody clicks. Nobody even reads past the subject line. The difference between a newsletter...
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Deliverability best practices
Bounce rate gate: automatic stop at 3 percent
A bounce rate gate pauses a campaign mid-send, as soon as the share of hard bounces crosses a set threshold. This is not a gadget in the panel...
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Email deliverability
Hard bounce, soft bounce, reputation block – three different problems
The sending report shows one number: bounces. Except that number covers three completely different things. A hard bounce is an address problem. A soft bounce is a moment-in-time...
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Deliverability best practices
Myth: Mass Emailing Is All About Volume – Your Real Problem Is Timing
Most email marketers obsess over the wrong number. They throw money at growing subscriber lists, buying bigger databases, cranking up send frequency – and completely ignore the one...
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Email deliverability
9 Email Marketing Sins That Kill Conversions in 2026
Email marketing pulls roughly $36 for every $1 you put in. No other digital channel touches that. But here’s the thing – most brands are bleeding conversions through...
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Email deliverability
Return-Path: the address you never see that decides your bounces
The campaign goes out at nine. The open chart climbs, the panel shows green bars, and at the same moment a few hundred messages come back to the...
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Email marketing
13 Underrated Ways to Convert Email Marketing Leads and Build Real Engagement
Email marketing pulls in about $36 for every $1 spent. And yet most teams keep blasting the same generic drip sequences they set up three years ago. Over...
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Email marketing
Myth: Mass Email Sends Boost Revenue – The Data Says Otherwise
Send more emails, make more money. That’s the pitch, right? And it sounds logical – until you look at what’s actually happening in people’s inboxes. Over 361.6 billion...
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Email deliverability
DMARC: p=none, quarantine or reject – when to tighten
DMARC does not protect your mail on its own. It is an instruction for the receiving server: what to do with a message that claimed your domain but...
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Email account setup
SPF, DKIM and DMARC for a Sending Domain, Step by Step
Three DNS records decide whether your mail gets a chance with the recipient at all. SPF, DKIM and DMARC for a sending domain are not a set of...
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Email automation
Mailchimp vs ConvertKit vs ActiveCampaign – Best Email Marketing Campaign Tools Ranked
Picking an email marketing platform seems like a small call. It’s not. This one decision shapes every single customer touchpoint your business sends out. The ROI numbers back...
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Business growth strategies
How Is Email Marketing Changing in 2026?
Every few years, someone declares email marketing dead. And every few years, they’re wrong. The channel still pulls roughly $36 for every dollar you put in – while...
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Email compliance & security
Data in the European Union: what it means and what it does not
The phrase “data in the European Union” hangs today on the website of just about every marketing tool vendor. It looks like the end of the compliance conversation....
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Business growth strategies
Mailchimp vs ConvertKit vs ActiveCampaign – Which Email Marketing Platform Wins in 2026
Email marketing pulls in roughly $36 for every $1 spent. That makes your platform choice one of the most impactful decisions you’ll make this year. Period. With 4.4...
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Business growth strategies
How Can You Convert Email Marketing Into Real Engagement?
Every couple of years somebody announces that email is dead. It doesn’t have the shine of the newer channels, so it’s an easy one to write off. But...
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Cold email outreach
One-to-one cold outreach that is not spam
One-to-one cold outreach is a single message to a specific person, written for a specific reason. Not a campaign to a list. And certainly not a sequence fired...
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Email marketing
The Complete Guide to Email Marketing in 2026: Strategy, Tools and Best Practices
Every few years, someone declares email marketing dead. And every few years, they’re wrong. In 2026, the channel pulls $36 for every $1 spent – a number that...
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Email compliance & security
Suppression lists: how not to email someone who opted out
A recipient clicks “unsubscribe”, gets a confirmation, and a week later another campaign from the same company lands in their inbox. You know this from the other side...
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Deliverability best practices
Step-by-Step Guide to Effective Email Marketing That Converts
$36 back for every dollar spent. That’s the average ROI on email marketing, and it blows paid social and display ads out of the water. Over 4.4 billion...
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List management
Double opt-in: cost, benefit and when it is necessary
Double opt-in is consent confirmed in a second step: the address joins the list only once the recipient clicks a link in a confirmation email. No extra form,...
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Cold email outreach
Cold Email in Poland: What Is Allowed in 2026
Cold email is legal in Poland in 2026 when three things line up: a GDPR basis, consent under PKE article 398, and correct SPF, DKIM and DMARC configuration.
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Business growth strategies
Email Marketing in 2026: What the Data Reveals and How Smart Teams Are Adapting
Every few years, someone declares email marketing dead. It’s become a ritual at this point – predictable, confident, and wrong every single time. Look, in 2026 over 4.4...
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Campaign analytics
Inbox Hero: How I Saved My Email Deliverability the Hard Way
It started on an ordinary Tuesday. Our open rates had been sitting comfortably for months, and then overnight they dropped by almost half. The Mailcraft team’s first guess...
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Email compliance & security
GDPR in email marketing: the minimum you need
RODO w email marketingu sprowadza się do dwóch pytań, które ktoś kiedyś ci zada: skąd masz ten adres i kto go wysłał. Pierwsze zadaje kontroler albo sam subskrybent....
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Email compliance & security
PKE Article 398: Marketing Consent Is Required in B2B Too
Zgoda marketingowa w B2B nie jest kwestią interpretacji. Wynika wprost z artykułu 398 Prawa komunikacji elektronicznej, które zastąpiło dwa wcześniejsze przepisy: artykuł 172 Prawa telekomunikacyjnego i artykuł 10...
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Deliverability best practices
Drip Campaigns vs Batch Sends: Which Protects Email Deliverability?
Email deliverability rarely dies because of weak copy or a boring subject line. It dies because mailbox providers stopped trusting the sender. At Mailcraft, we built our whole...
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Email marketing
9 Email Marketing Shifts That Will Define 2026
Someone declares email marketing dead every couple of years. And every couple of years, the numbers shut them up. In 2026, email still pulls roughly $36 for every...
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Deliverability best practices
A Practical Guide to Solving Mass Email Delivery Problems Once and For All
You spent weeks on a campaign. The copy’s solid, design looks great, subscriber list is a decent size. You hit send, wait for results – and half your...
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Campaign analytics
I Tested 50 Email Campaigns Over 6 Months – Here Are My Key Takeaways
Six months ago, I ran 50 structured email campaigns across different audience segments, industries, and content formats. Why? Because I was tired of guessing. Email pulls in roughly...
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Mass Email Sending Is Hopeless, You Think? The Truth Says Otherwise
Why “Email Is Dead” Keeps Getting Disproven Every couple of years somebody declares email marketing finished, buried under whatever shiny platform launched last quarter. We hear it a...
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Deliverability best practices
How Do You Run a Newsletter That People Actually Want to Read?
$36 back for every $1 spent. That’s what email marketing pulls in on average – and yet most newsletters sit there gathering digital dust, unopened, unloved, buried under...
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Campaign analytics
I Tested 5 Email Marketing Tactics for 90 Days – Here Are My Results
I’ll be honest – most email marketing advice is just recycled fluff with no numbers behind it. We got fed up with that at Mailcraft.eu. So we ran...
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Deliverability best practices
My 2-Year Journey to 98% Email Deliverability – Lessons That Actually Work
Two years ago, almost one in five emails we sent from Mailcraft.eu just… disappeared. Open rates sat at 18%. Campaigns tanked. We blamed subject lines, redesigned templates, rewrote...
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Deliverability best practices
11 Bulk Email Problems That Silently Tank Your Deliverability
Deliverability damage sneaks up on you. It’s not a sudden crash – it’s a slow bleed. By the time you notice inbox placement tanking, weeks of reputation erosion...
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Email marketing
Myth: More Emails Mean Better Results – The Truth About Effective Email Marketing
There’s this persistent belief floating around marketing departments: send more emails, make more money. Sounds logical, right? It’s not. With 361.6 billion emails sent and received daily –...
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Email automation
Step-by-Step: How to Build Email Marketing Campaigns That Convert
Every few years, someone declares email marketing dead. And every few years, they’re wrong. Social platforms grab headlines, new channels pop up overnight, and everyone chases the shiny...
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Email marketing
11 Newsletter Management Tricks Most Marketers Will Never Try
Email marketing pulls in about $36 for every $1 spent. That number’s been consistent for years. And yet most marketers keep running the same tired playbook they picked...
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Business growth strategies
How to Fix Bulk Email Delivery Problems Fast: A Step-by-Step Guide
Every campaign post-mortem we run at Mailcraft ends up in the same spot. Teams show up convinced the copy flopped or the template looked dated. But the data...
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Deliverability best practices
8 Newsletter Mistakes Killing Your Open Rates Before Subscribers Even Read
At Mailcraft we watch thousands of sends cross the wire every week, and honestly, the pattern barely budges. Most open-rate problems get settled long before a subscriber lays...
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Campaign analytics
Drip Campaigns vs One-Time Blasts – Which Email Strategy Delivers More ROI
Look, most marketing teams default to one-time email blasts. And I get it – they feel productive. You draft a message, hit send, watch the metrics roll in....
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Deliverability best practices
The Complete Playbook for Maintaining High Email Deliverability
Your email campaign can be a masterpiece. Doesn’t matter. If it lands in spam, nobody sees it. Deliverability – getting into the actual primary inbox, not promotions, not...
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Email account setup
Why Do Newsletters Still Outperform Every Other Marketing Channel?
Email gets a funeral every couple of years. Some shinier channel shows up, everyone declares the inbox dead, and the eulogies make the rounds. At Mailcraft we build...
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Deliverability best practices
Dedicated IPs vs Shared IPs – Which Setup Keeps Your Email Deliverability High
Every email you send rides on an IP address. That address has a reputation score, and mailbox providers use it to decide if you’re trustworthy or not. Simple...
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Business growth strategies
How Can You Convert Email Subscribers Into Engaged Loyal Customers?
A big subscriber list looks great on your dashboard. Means absolutely nothing if those people never buy, click, or actually give a damn about what you sell. The...
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Business growth strategies
My Battle With Low-Performing Mailings: What We Learned Building Mailcraft
For months our campaigns kept landing softer than they should. Open rates flatlined, clicks drifted down, and the gap between effort and outcome got wider with every send....
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Cold email outreach
Email Newsletters vs Cold Outreach: Which Drives More Sales in 2026?
Every Mailcraft user ends up asking us the same thing: where should limited time and budget go – into nurturing a list you own, or into chasing new...
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