DELIVERABILITY RESOURCES
Email marketing that delivers (literally)
Learn how Mailchimp can help you improve deliverability rates on your email campaigns. It’s easier than you think.

Understanding deliverability
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How Mailchimp Gets More Emails in Inboxes
Q&A
Our Delivery team discusses the importance of deliverability, what sets Mailchimp apart, and how senders can increase their rates.
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Deliverability 101: Your New Top Priority
Marketing Resource
Find out how to establish a good sender reputation before you start sending high-volume email marketing campaigns.
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Email Deliverability: Why It Matters & How to Improve It
Marketing Resource
Your email marketing can’t work if your audience isn’t receiving your emails. Here’s how to send emails that make it to their destinations.
Getting started
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Migrating & Ramping Up: Your Deliverability Checklist
Checklist
Deliverability rates improve over time. Here’s a quick checklist you can use to make sure you’re on track as you get started with Mailchimp.
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How To “Warm Up” Your Email Marketing Domain
Step-by-Step Guide
Find out how to establish a good sender reputation before you start sending high-volume email marketing campaigns.
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Why Email Engagement Is Key to Deliverability
Marketing Resource
Learn how taking steps to boost engagement can help you keep your marketing emails out of customers’ spam folders.
Improving your delivery rate
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Protecting and Repairing Your Email Reputation
Marketing Resource
From best practices to more in‑depth reputation repair, here's how you can get your email deliverability back on track.
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Gmail Updates 2025: Why The Inbox Just Got Smarter
Marketing Resource
Here’s how to adapt your strategy to the new rules of the inbox
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Why Are My Emails Winding Up in Spam Folders?
Marketing Resource
Spam filters work hard to reduce inbox irrelevance. Get to know what spam is, along with how spam filters and firewalls work.

The easy way to remember the top 5 delivery tips
Head spinning? There’s a lot to learn and remember—but we’re here to help. Download our PDF cheat sheet featuring the most important things you need to keep in mind.
Download the PDF
Everything you need to know on one page
Become a deliverability expert
Want to learn even more? Your deep dive starts right here.
Understanding email fundamentals
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About email marketing management
Learn about email marketing engagement levels and how to use that information to create targeted emails.
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What is an SMTP server?
An SMTP server is dedicated to sending and receiving large quantities of emails. Learn more about SMTP servers and their impact on email marketing here.
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How to avoid email spam filters
Spam filters work hard to reduce inbox irrelevance, so it’s important that you understand what spam is, and how spam filters and firewalls work. Read now
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What are the most-used email service providers?
There are several email service providers one can turn to for business and personal use. Read this guide to learn about the most popular email providers.
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About email domain authentication
Authenticate your domain to make sure your emails are not marked as spam or blocked entirely. Read now
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When email addresses go stale
Learn about stale addresses, and how to improve a stale audience. Read now
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About pre-built segments
Mailchimp offers a selection of pre-built segments based on email engagement, purchase history, and other valuable information. Learn more
Managing your audience
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Cleaning email lists 101
Regular email cleaning benefits your email marketing strategy and can improve metrics like conversion and open rates. Read now
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How legitimate marketers avoid spam complaints
Even legitimate marketers with clean audiences will receive an abuse report at some point. Learn about them here.
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Understanding bounces
In this article, you'll learn about the types of bounces, guidelines for bounce limits, and how to handle them.
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About double opt-in
Learn about the difference between single opt-in and double opt-in and how to use it. Read now
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About fake signups
Find out how we help protect your signup forms and what to do if you think addresses in your audiences are spam.
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Managing your contacts
Learn how to manage your contacts in Mailchimp. Read now
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Archiving inactive contacts
Archiving inactive contacts can help you lower your costs and focus on your biggest fans. Learn how
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Getting started with merge tags
Learn about merge tags and ways you can use them to customize your marketing content. Read now
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How to manage your audience in Mailchimp
Learn the benefits of organizing your customer data in Mailchimp and how to do it. Read now
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How to view abuse complaints
Abuse complaints can be found in your campaign reports. Learn more about how to find them.
Optimizing for deliverability
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Accessibility in email marketing
Understand the core principles that can guide you to creating accessible content for all your visitors. Read now
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A/B testing in digital marketing
Learn about the basics of A/B testing and how you can use it to improve the results of your marketing emails. Read now
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Best practices for email subject lines
Find tips for writing strong subject lines, and learn ways to test subject line performance. Read now
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How to design eye-catching marketing emails
If you’re not quite sure how to design marketing emails, a few design tips can be a big help. Read on
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Understanding CTAs
Find out what a call to action is and how it resonates with your target audience. Read now
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The importance of permission
Permission is not only common courtesy, it's required by our Terms of Use. Learn about it and what you can do to secure it.
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About open and click rates
Permission is not only common courtesy, it's required by our Terms of Use. Learn about it and what you can do to secure it.
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Best practices for Mailchimp emails
Learn the basics of email marketing and how to follow Mailchimp's Terms of Use. Read now