What is the +1 Gmail trick? (and why you shouldn’t rely on it)

The “+1 Gmail trick” (also called the “Gmail plus trick”) uses a small feature in Gmail: you can add a...

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What Are the Differences Between Texting and Email?

Texting and email both deliver written messages, but they target very different moments. SMS goes straight to the phone in...

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MSISDN: Definition and Format (CC+NDC+SN)

MSISDN stands for Mobile Station International Subscriber Directory Number. It is the worldwide format your SMS gateway uses to identify...

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What Does Emailing Mean?

Emailing refers to the practice of sending email at scale — usually to a list of contacts — for marketing,...

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What is My SMTP Username and Password?

Your SMTP username and password are the credentials your email client or app uses to authenticate with the SMTP server...

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What Is a Password Reset Email?

A password reset email is the automated message a service sends when a user clicks « forgot password ». It...

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What’s a no-reply email?

A no-reply email is a sender address — for example [email protected] — used to push transactional or notification messages without...

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What Is DNS Error 5.7.26 and How to Fix It?

DNS error 5.7.26 is the bounce code Gmail returns when an incoming message fails its sender authentication checks. The address...

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What’s the character limit for an SMS?

A single SMS holds up to 160 characters with the standard GSM-7 alphabet, or 70 characters when it contains Unicode...

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What Are Contact Tags?

A tag is a short keyword you stick on a contact — "VIP", "Black-Friday-2024", "Webinar-attendee". Unlike fixed fields, you can...

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What Is a DMARC Record and How to Use It?

DMARC (Domain-based Message Authentication, Reporting and Conformance) is the email authentication standard that ties SPF and DKIM together and tells...

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What Is Graymail and How Is It Different From Spam?

Graymail is the email category that sits between truly wanted messages and outright spam: newsletters, promotions, alerts and notifications that...

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What is DMARC? Policies, alignment and safe sending

DMARC (Domain-based Message Authentication, Reporting and Conformance) is the shield that protects your domain from spoofing and phishing. It combines...

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What Is a Monitoring DMARC Policy?

A monitoring DMARC policy is the safest way to start with DMARC. You publish a TXT record with p=none, which...

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What personal data do we collect from blog, website or app visitors?

Mailpro collects only the data needed to deliver the service and run a legitimate business. We do not buy, harvest,...

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What is a CTA or call to action?

A CTA, or call-to-action, is the prompt — usually a button or styled link — that tells your reader exactly...

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How to Send Form and Survey Emails From Your Own Domain

By default, Mailpro forms and surveys send confirmation and notification emails from a Mailpro server address. To make those messages...

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What is Email Blacklisting?

Email blacklisting is a deliverability blocker: an IP address or sending domain gets added to a public list of suspected...

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What Are the Requirements for Using Mailpro?

The bar to start with Mailpro is intentionally low. You need three things: a browser, a sender domain you control,...

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What is a domain name?

A domain name is the human-readable address of a website or email server — like mailpro.com. Behind the scenes the...

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Mailpro AI and Your Data: What to Know

Several Mailpro features — grouped under the “Mailpro AI” label — rely on artificial intelligence tools provided by external partners...

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What Is Eco-Friendly Email Marketing?

Eco-friendly email marketing is the practice of reducing the carbon footprint of your campaigns — lighter emails, cleaner lists, fewer...

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My deliverability score dropped — what should I do?

A drop in your Deliverability Score almost always traces back to one specific cause. The Deliverability Center surfaces it directly...

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What does "blacklisting" mean?

Blacklisting is the listing of your IP or domain on a public block list (RBL, DNSBL, Spamhaus, Barracuda…) that flags...

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In messages, what is the "Convert" button for?

The "Convert" button turns an imported HTML message into editable drag-and-drop blocks in Mailpro. You bring an existing newsletter into...

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What is a two-factor authenticator (2FA)?

A two-factor authenticator (2FA) is a small mobile or browser app that produces a fresh 6-digit code every 30 seconds....

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What Kind of Cookies Does Mailpro Use?

Mailpro’s public website uses cookies for three purposes: remembering your preferences, measuring traffic anonymously, and tracking advertising effectiveness. The Mailpro...

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What Is a Good Email Marketing ROI?

Across industries, email marketing averages around $36 in revenue for every $1 spent. Anything above that is a great campaign...

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What happens if my credits run out during an automation?

When your email or SMS credits hit zero while an automation is running, the message-sending steps pause — they are...

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What Is Email Segmentation and Why Is It Important to Use It?

Email segmentation is the practice of breaking your contact list into smaller groups defined by behaviour, attributes or interests —...

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Open tracking and the CNIL recommendation: what Mailpro does, what you must do

Since the CNIL's recommendation of 14 April 2026, measuring the opens of your emails for marketing purposes (the "tracking pixel")...

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How Does Mailpro Ensure the Security of Survey Data?

Surveys, their answers and the files received are hosted in Switzerland and served over an encrypted connection (HTTPS). Who can answer Open...

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What are SPF, DKIM and DMARC?

SPF, DKIM and DMARC are three email authentication protocols that prove an email is really from your domain. Mailbox providers...

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What is a good open rate?

In email marketing, a good average open rate sits around 20-25%. But that figure varies a lot with industry, list...

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What is the click-through rate (CTR)?

The click-through rate (CTR) is one of the most important KPIs in email marketing. It measures the share of recipients...

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What counts as a good Deliverability Score?

Your Deliverability Score ranges from 0 to 100. Three bands tell you at a glance how your sending is doing...

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What Is a DKIM Record?

DKIM (DomainKeys Identified Mail) is an email authentication method that lets a sender attach a cryptographic signature to every outgoing...

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What is the Intelligent Deliverability Center?

The Intelligent Deliverability Center is a dedicated section inside Mailpro that brings every signal affecting your email deliverability onto a...

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What does the unsubscribe experience look like for my recipient?

When someone unsubscribes from your Mailpro emails, the experience is quick and frictionless. Here's exactly what your recipient sees, the...

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What is a user agent and how does Mailpro use it?

A user agent is the identifier a web browser or email client sends to a server so it can introduce...

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What Is Dark Mode in Mailpro, and When Should I Use It?

Dark Mode in Mailpro is a built-in preview that shows how your newsletter will look in mail clients that switch...

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What is a drag and drop editor?

A drag-and-drop editor is a visual newsletter builder where you assemble an email by dragging blocks — text, images, buttons,...

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What is the best email automation?

There is no single "best" email automation — the best one is the one that matches your goals, your audience...

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What happens if my server does not answer a webhook?

A delivery counts as successful when your URL answers with an HTTP 2xx code within 10 seconds. Anything else (timeout,...

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What is email automation?

Email automation is the practice of sending pre-built emails to your contacts automatically — triggered by a date, a contact...

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What Is a Welcome Email?

A welcome email is the first message someone receives after subscribing to your list, creating an account or completing their...

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What are the limits of the Mailpro API (requests, attachments, API credits)?

Call rate The API accepts 500 requests per minute per account. Beyond that it answers 429 Too Many Requests with the...

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How Can I Improve Survey Participation?

A survey rarely fails because of its questions: it fails because people do not open it, or give up halfway...

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Mailpro webhooks: what are the three types of webhooks?

At Mailpro the word “webhook” covers three different mechanisms. They serve different needs and are configured in different places —...

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What App Can I Use to Create a Newsletter?

You need an app that does three things well: build the email, send it reliably, measure the results. Mailpro covers...

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What Is a Customer Satisfaction Survey? Definition and Purpose

A customer satisfaction survey is a short questionnaire that measures what your customers think of a purchase or a service:...

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Can I Add Branching Logic to My Surveys?

Yes. Branching refers to page jumps: on a multi-page survey, you decide after each page where the respondent goes next,...

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Does the Survey Tool Provide Analytics and Reporting?

Each survey's responses page starts with the charts, updated as answers come in; below them, the full list of answers. What...

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How to enable password-protected forms and surveys

In the settings, Access section, choose who can answer. This applies to forms, surveys and quizzes. AccessHowFor EveryonePublic linkContact, sign-up, feedback PasswordA shared...

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Can I Customize the Look and Feel of My Surveys?

Yes. The look is set in a single panel, and each change shows up instantly. Surveys, forms and quizzes use...

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How to Create a Survey Online

In Mailpro, open Create → Survey. The survey is built in the same editor as forms, without code, and its...

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How to Share Your Mailpro Form

Once the form is published, everything happens from its sharing screen. Choose the channel that suits your respondents, or combine...

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How do I run an anonymous vote where nobody knows who voted for what?

Create a quick poll (Create → Quick poll) and tick Secret poll. Everyone votes only once, and nobody can link...

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Form, survey, quick poll or quiz: which one should you choose?

All four are created in the same Mailpro editor, from the Create menu. The difference lies in what you want...

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How do I export form or survey responses to Excel?

From the responses page, click Export. The file is prepared in the background, then you download it from the exports...

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What Is IP Reputation and Why Does It Matter?

IP reputation is the trust score that mailbox providers (Gmail, Yahoo, Outlook, Apple Mail) assign to the IP address that...

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How do I send a reminder only to those who have not answered a survey?

The idea: each answer adds a tag to the respondent's contact record; a segment “list you sent to, without this...

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How do I measure NPS with a survey and calculate the score?

Add the NPS block to your survey: the question “On a scale of 0 to 10, how likely are you...

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What happens to the forms I created with the old editor?

They keep working just as before: nothing changes for your respondents or for links you have already shared. Switching to the...

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How do I create a QR code for a form, a survey or a quiz?

Once the form is published, open the sharing screen: the QR code is ready there. Customize it, then download it...

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How do I translate a form or a survey into another language?

In the editor, open the AI assistant and choose Translate. All the texts in the form are translated together: questions,...

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What Is SPF (Sender Policy Framework)?

SPF (Sender Policy Framework) is an email authentication standard that lets a domain owner publish a list of servers authorized...

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What Is an SMTP Relay Service and How Does It Work?

An SMTP relay service is a managed outgoing mail server that sends email on behalf of your application, website, CRM...

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What are bounces and how are they managed?

Bounces are emails that could not be delivered to the recipient. Mailpro handles them automatically and protects your deliverability. Pro tip:...

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What Is a Dedicated IP Address for Email?

A dedicated IP is an IP address that sends email for one sender only. Every message that leaves it is...

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What Are the Consequences of an Email Blacklist Listing?

Being put on an email blacklist means that mail servers which check that list will reject your messages, delay them...

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What Happens After a Spam Complaint?

If a recipient files an abuse complaint about an email or SMS campaign sent through your Mailpro account, our compliance...

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