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Troubleshoot the Signup Activation Email

Troubleshoot common reasons why you haven't received the account activation email.

I Received Spam from Mailchimp

How to report a Mailchimp user who is violating our Terms of Use by sending spam.

I know this email address is valid, but it hard bounced

Valid email addresses can hard bounce for many reasons. Reading bounce headers (SMTP replies) can provide insight on what caused an address to hard bounce.

I Can't Log In

Get tips for solving login problems and other common account access issues.

Use Groups to Find Subscriber Preferences

Learn how to create and use groups that are tailored to subscriber preferences and interests.

How Throttling Improves Deliverability

Mailchimp aims to deliver your campaigns as quickly as possible. However, postponing deliver can help us stop spam and ensure your email reaches inboxes.

How the Form Builder Works

Learn how to customize forms, welcome emails, and other response emails with our Form Builder.

How Mailchimp Prevents and Handles Abuse

Learn the steps we take to prevent abuse of our system, and how we handle abuse when it happens.

How Mailchimp Can Help Your Online Store

Mailchimp’s e-commerce tools help you grow your business and sell more stuff. Find new audiences, promote your products, boost customer loyalty, and track your sales.

How Legitimate Marketers Can Prevent Spam Complaints

Learn why audiences generate abuse complaints, and steps to take to prevent them.

About Denylists

Learn how some email servers and spam filters use denylists, lists of IP addresses for known spammers, to prevent email delivery.

Host Your Own Signup Forms

Mailchimp's signup forms let people sign up for your email marketing. Learn how to host and edit signup forms on your own website.