Resources

Guides, product updates, case studies and research from the Mailyser team

Sending to Microsoft - What's Changed?

As of May 5, 2025, Microsoft has started actively rejecting emails from high-volume senders that don’t meet their new authentication requirements. This aligns with recent moves from Google and Yahoo, making these standards the new norm across inbox providers.If you’re sending more than 5,000 emails per day to Microsoft consumer domains (like @outlook.com, @hotmail.com, @live.com), you must comply — or your emails may bounce completely.

Blog

A practical guide to setting up DMARC & SPF

Complete Guide to Protecting Your Domain from Email Spoofing & Phishing

Guide

Getting Started with Email Marketing Deliverability: A Beginner’s Guide to Inbox Success

Email marketing deliverability is a fundamental component that can make or break the success of your campaigns, ensuring that your messages reach the inbox and not the spam folder. For beginners stepping into the world of email marketing, understanding deliverability can seem daunting, but it's essential for connecting with your audience effectively. This guide will walk you through the basics, from selecting a dependable email service provider and setting up your domain authentication to optimizing email segmentation and design best practices. We'll also explore how to craft compelling email content that fosters subscriber engagement and leverage email analytics to monitor deliverability rates. By mastering these foundational strategies, you'll be well on your way to achieving inbox success and building a strong, engaged subscriber base.

Guide

Guides to help you use Mailyser

A practical guide to setting up DMARC & SPF

Complete Guide to Protecting Your Domain from Email Spoofing & Phishing

Guide

Getting Started with Email Marketing Deliverability: A Beginner’s Guide to Inbox Success

Email marketing deliverability is a fundamental component that can make or break the success of your campaigns, ensuring that your messages reach the inbox and not the spam folder. For beginners stepping into the world of email marketing, understanding deliverability can seem daunting, but it's essential for connecting with your audience effectively. This guide will walk you through the basics, from selecting a dependable email service provider and setting up your domain authentication to optimizing email segmentation and design best practices. We'll also explore how to craft compelling email content that fosters subscriber engagement and leverage email analytics to monitor deliverability rates. By mastering these foundational strategies, you'll be well on your way to achieving inbox success and building a strong, engaged subscriber base.

Guide

Deliverability 101: Learn the Basics

Get to know the basics of deliverability so you can ensure your emails reach as many inboxes as possible.

Guide

Common mistakes that will harm your deliverability

Explore the most common pitfalls when sending out email campaigns, which may lead to low deliverability.

Guide

Why Mailyser is the Ideal New Home for Former Kickbox Customers 🚀

See why you should switch to Mailyser from Kickbox to ensure your email deliverability stays as high as possible.

Guide

New updates from Gmail & Outlook (big changes!) 😳

Understand the new updates that will impact how your emails are delivered to Gmail and Outlook.

Guide

How To's & Docs

Mailyser Product Update

A quick product update showcasing the latest releases, including admin controls, enhanced seed accounts and UI enhancements.

Doc

How to make sure your DNS records are set up right

Figure out how to ensure your DNS records are set up correctly so your emails can be delivered reliably.

How To

IMPORTANT: Glossary of Terms on Email Deliverability

Explore our glossary of terms on deliverability to refresh your memory and ensure you know what to focus on.

Doc

How does your email message and content affect your inbox placement?

How the content and messaging of your emails play a pivotal role in landing those emails right into your subscribers' inboxes.

Doc

Christmas Tips for Email Marketers (Important! 🎅🏼)

Dive into our Holiday Email Marketing Checklist to make sure your campaigns sparkle brighter over the festive period.

How To

Automate your email tests with our API docs

Integrate email testing and deliverability analysis into your system with our API documentation.

View API Docs

Get authenticated with Mailyser’s DMARC info

Set up your testing environment with Mailyser’s DMARC info for reliable deliverability metrics.

View DMARC Info

Mailyser provides you with continuous, actionable insights into your email deliverability, reputation, and content.

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