Getting Started with Mailchimp: The Small Business Email Marketing Setup Guide

Email marketing consistently outperforms every other digital marketing channel for return on investment. For small businesses, it's also the most direct line to an audience you actually own, unlike social media followers, your email list can't be taken away by an algorithm change, a platform update, or a shadow ban.

And yet for most small business owners, email marketing sits permanently on the to-do list without quite getting started. The account is created, possibly even paid for, and then quietly not used, because setting it up properly feels like a project that requires more time and technical knowledge than the day allows.

This guide removes that barrier. It covers everything you need to do to get Mailchimp properly configured and your list ready to grow, step by step, with the reasoning behind each decision explained so you understand what you're building, not just how to click through it. If you're starting from scratch, begin at Step 1. If you already have an account but haven't fully set it up, skip to whichever step covers the gap.

Why Mailchimp?

Mailchimp is one of the most widely used email marketing platforms in the world — which means your clients, collaborators, and integrations are likely already familiar with it. It has a strong free tier (up to 500 contacts and 1,000 emails per month), a well-developed template library, and robust automation features on paid plans. For small businesses that want a platform they can grow into without switching tools, it's a solid starting point.

Step 1 - Create Your Account (5 minutes)

Go to mailchimp.com and click Sign Up Free. You'll be asked for your email address, a username, and a password. Use your business email address, the one you'll be sending from, rather than a personal address. This keeps your account clearly connected to your business and makes the sender profile setup in Step 2 straightforward.

Mailchimp will send a verification email immediately. Confirm it before proceeding, unverified accounts cannot send campaigns. Once confirmed, you'll be taken through a short onboarding flow asking for your business name, website, and whether you have an existing list. Complete this honestly, it sets up the baseline configuration for your account.

Already have a Mailchimp account? Log in and go to Account → Settings → Contact information. Confirm your business name, website, and physical address are current and accurate before moving to Step 2. Also check Account → Settings → Details to confirm your account email address is the one you want to send from.

Step 2 - Configure Your Account Settings (15 minutes)

Go to Account → Settings in your Mailchimp dashboard. Work through each section methodically. Getting these settings right before you send anything is what separates email that lands in inboxes from email that lands in spam folders.

Contact information

Mailchimp, like all legitimate email marketing platforms, requires a physical mailing address to appear in the footer of every email you send. This is a legal requirement under UK GDPR and the Privacy and Electronic Communications Regulations (PECR), not just a platform rule. Go to Account → Settings → Contact information and enter:

Setting	Recommended	Why it matters
Business name	Control Alt Completed	Appears in your email footer and as your sender identity
Website URL	controlaltcompleted.co.uk	Links your Mailchimp account to your domain for authentication purposes
Physical address	Your registered business or PO box address	Legal requirement — do not use your home address if you're not comfortable with it being publicly visible
Phone number	Optional, business number if you have one	Not displayed publicly but used by Mailchimp for account verification if needed

Domain authentication (DKIM and SPF)

This is the most technically involved step, and the most important one for ensuring your emails actually reach inboxes. Domain authentication proves to email providers like Gmail and Outlook that your emails genuinely originate from your domain rather than being spoofed by a third party.

In Mailchimp, go to Account → Domains → Authenticate your email domain. Enter controlaltcompleted.co.uk and follow the instructions to add the required DNS records to your domain provider. If your website is on Wix, you'll do this in your Wix domain settings under Domains → DNS Records. Mailchimp provides step-by-step instructions for the most common domain providers.

DNS changes can take up to 48 hours to propagate, though they're usually faster. Once verified, your domain will show as authenticated in Mailchimp. Do not skip this step, unauthenticated sending domains have significantly lower deliverability rates and are increasingly blocked by major email providers.

If the DNS setup feels daunting: authentication setup is exactly the kind of technical task a VA handles well - it's precise, step-based, and takes about 15 minutes for someone who knows what they're doing. If you'd rather hand it off, book a Discovery Call and we can get it done for you.

Step 3 - Set Up Your Audience and Tags (15 minutes)

In Mailchimp, your email list is called an Audience. Unlike some platforms, Mailchimp's free plan supports only one Audience, which means everyone on your list lives in the same place. Segmentation is handled using Tags, Segments, and Groups rather than separate lists.

For most small businesses, Tags are the simplest and most practical way to organise your Audience. A tag is a label you apply to a contact to indicate something about them, who they are, how they joined your list, what they're interested in. You can then filter and send to specific tags rather than your whole Audience at once.

Recommended tags to set up from the start

Tag	Who gets this tag	When it's useful
Client	Current and past clients	Send client-specific updates or offers without emailing prospects
Prospect	People who've enquired but not yet become clients	Nurture sequence or targeted follow-up
Referral Partner	People who send you work or collaborate with you	Different communication tone and content to clients
Freebie Download	Anyone who joined via a lead magnet or PDF	Tracks which subscribers came through content marketing
Newsletter	Anyone signed up for your general newsletter	Your default tag for general campaign sends
Event / Networking	People you met at a specific event	Useful for tracking which networking activity converts

To create tags: go to Audience → Tags → Create Tag. Name each one clearly and consistently - tag names are case-sensitive in Mailchimp and inconsistent naming creates duplicate tags that are annoying to clean up later. Use Title Case throughout (e.g. "Referral Partner" not "referral partner").

Mailchimp terminology note: Mailchimp uses the terms Audience, Tags, Groups, and Segments - and they mean different things. Tags are applied manually or via import. Groups are subscriber-selected categories. Segments are dynamic filters based on behaviour or data. For setup purposes, Tags are what you need. Groups and Segments become useful as your list grows.

Step 4 - Import Your Existing Contacts (20 minutes)

If you have existing contacts you want to add to your list: past clients, networking contacts, people who've given you their email address and expressed interest in hearing from you, now is the time to import them. But read this section carefully before you do: importing contacts incorrectly is one of the fastest ways to damage your sender reputation and risk your account being suspended.

Who you can import

UK GDPR is clear on this: you can only email people who have given you explicit consent to receive marketing from you, or with whom you have a legitimate business relationship. In practice for a small business, this means:

•       Past and current clients - yes, if you've corresponded by email and the relationship is active or recent

•       People who have explicitly asked to be on your mailing list - yes

•       Networking contacts who gave you their business card - not automatically, unless they've indicated interest in receiving marketing communications from you

•       Contacts scraped from LinkedIn, directories, or websites - no, under any circumstances

If you're unsure about a contact, leave them out. A smaller list of genuinely engaged subscribers is significantly more valuable, for results and for sender reputation, than a larger list that generates complaints and unsubscribes.

How to import

Go to Audience → Add contacts → Import contacts. Mailchimp accepts CSV files, copy-pasted data, or direct import from platforms like Google Contacts. For a CSV import, prepare your file with at minimum: email address, first name, last name, and a column for the tags you want to apply. Mailchimp's import wizard will walk you through matching your columns to its fields.

Before importing, clean your list: remove duplicates, check for formatting errors in email addresses, and delete any contacts you're not confident about. A clean import takes a few extra minutes and prevents deliverability problems later.

The compliance checkbox: during import, Mailchimp will ask you to confirm that your contacts have given permission to receive emails from you. This is a legal declaration, not a formality. Check it only if it's genuinely true for every contact in your import file. Mailchimp monitors engagement rates across its platform and accounts that generate high spam complaints can be suspended without warning.

Step 5 - Create Your Sign-Up Form (20 minutes)

A sign-up form is how new subscribers join your list organically, without you manually adding them each time. Every business with an email list should have at least one sign-up form on their website. This is how your list grows while you're focused on other things.

Form options in Mailchimp

Mailchimp offers several form types. For a small business starting out, focus on these two:

•       Embedded form - sits permanently on a page of your website, usually below a blog post, on your contact page, or in your site footer. The most common and least intrusive option. This is where to start.

•       Pop-up form - appears after a visitor has been on your site for a set amount of time or scrolled a certain distance. Higher conversion rate than embedded forms but more intrusive, implement once your embedded form is working well.

Building your embedded form

Go to Audience → Signup forms → Embedded forms. Mailchimp will generate a default form, you can customise the fields, styling, and messaging from here. Key decisions to make:

Fields: First name and email address is the standard for small business sign-up forms. Every additional field you add reduces completion rates. Only ask for what you'll genuinely use, if you're not going to personalise emails by last name or company, don't ask for them.

Double opt-in: Mailchimp calls this "Enable double opt-in", it sends a confirmation email to new subscribers before adding them to your list. Keep this switched on. It's best practice under GDPR, it produces a cleaner and more engaged list, and it protects you if someone else signs up with another person's email address.

Thank you message: After submitting, subscribers see a confirmation message. Customise this to tell them what to expect, how often you'll email, what you'll cover, and whether there's a freebie or resource on its way. Setting expectations at the point of sign-up significantly reduces future unsubscribes.

Adding the form to your Wix website

Once your form is configured, click Generate code in Mailchimp and copy the embed code. In Wix, go to the page where you want the form to appear, add an HTML embed element (Add Elements → Embed Code → HTML iframe), paste the code, and publish. The form will appear on your live site immediately.

As a minimum, add your sign-up form to your homepage, your contact page, and the footer of every blog post. These three placements cover the majority of your site traffic without being intrusive.

Wix has a native Mailchimp integration available through the Wix App Market (search "Mailchimp"). This connects your Wix contact form submissions directly to your Mailchimp Audience without needing to embed a separate form. Worth installing if you receive regular enquiries through your Wix contact form, it removes the manual step of adding enquirers to your list.

Step 6 - Send a Test Email and Check Everything Works (15 minutes)

Before you consider your setup complete, send a test email to yourself and verify every element is working correctly. This takes 15 minutes and prevents the experience of discovering a problem after your first real campaign has gone out to 300 people.

In Mailchimp, you can send a test from any campaign draft by clicking Preview → Send a test email. Send it to your own email address, ideally a Gmail address if you have one, since Gmail's spam filtering is among the strictest and a clean Gmail delivery is a good indicator of overall deliverability.

What to check

•       From name: does it display exactly as intended? Is it your business name or your name, not a Mailchimp default?

•       From email address: is it your branded domain address (not a Mailchimp subdomain or a free provider)?

•       Subject line: does it display correctly and not get cut off on mobile?

•       Footer: does it include your business name, physical address, and a working unsubscribe link?

•       Unsubscribe link: click it and confirm it processes correctly. A non-functional unsubscribe link is a GDPR violation and a Mailchimp terms of service breach.

•       Mobile rendering: open the test email on your phone. More than half of emails are now opened on mobile. If the layout breaks on a small screen, fix it before sending.

•       Inbox placement: did the test email land in your Gmail inbox, or in spam or promotions? If it landed in spam, go back to Step 2 and confirm domain authentication is complete.

Mailchimp's paid plans include an Inbox Preview feature that shows you how your email will render across different email clients and devices before you send. If you're on the free plan, the test email method above covers the essentials - send to Gmail and open on your phone as a minimum.

Quick-Reference: The Mailchimp Setup Checklist

Use this checklist to confirm your setup is complete before sending your first campaign to your list.

Quick-Reference: The Mailchimp Setup Checklist

Use this checklist to confirm your setup is complete before sending your first campaign to your list.

Account setup

☐  Account created using your business email address

☐  Email address verified

☐  Business name and physical address entered in Contact information settings

☐  From name set to your name or business name as subscribers will recognise it

☐  From email set to your branded domain address - not a free email provider

☐  Domain authenticated (DKIM and SPF records added to your DNS settings and verified)

Audience and tags

☐  Audience name updated to reflect your business (Audience → Settings → Audience name)

☐  Tags created: Client, Prospect, Referral Partner, Freebie Download, Newsletter, Event / Networking

☐  Existing contacts imported - GDPR-compliant only

☐  Import file cleaned before uploading - duplicates removed, formatting checked

☐  Tags applied to imported contacts

Sign-up form

☐  Embedded sign-up form configured with first name and email address fields

☐  Double opt-in enabled

☐  Thank you / confirmation message customised

☐  Form embed code added to Wix: homepage, contact page, and blog post footer

☐  Wix–Mailchimp native integration installed if you receive enquiries via Wix contact form

Pre-send checks

☐  Test email sent to your own email address

☐  From name and from email display correctly

☐  Footer includes business name, address, and working unsubscribe link

☐  Email renders correctly on mobile

☐  Test email delivered to Gmail inbox - not spam or promotions folder

What's Next: Your Welcome Sequence and First Campaign

With your account configured and your list ready to grow, the next step is making sure new subscribers hear from you promptly. That means a welcome sequence, an automated email that goes out immediately when someone joins your list, and a regular campaign rhythm so your audience stays warm and connected to your business.

These are covered in Part 2 of this guide, coming soon. In the meantime, the Social Media Planning Guide is the natural companion piece, your email content and your social content work best when they're drawn from the same content strategy rather than planned separately.

→ Read the Social Media Planning Guide

Or if you'd like someone to complete your Mailchimp setup, build your welcome sequence, and get your first campaign scheduled, that's a setup project Control Alt Completed handles regularly. Book a free Discovery Call and we'll talk through exactly what you need.

→ Book a Free Discovery Call HERE

No commitment. We'll identify exactly where to start.

This guide is part of the Control Alt Completed Small Business Productivity Hub - a free collection of systems, checklists, and guides for small business owners who want to get properly organised.

→ Visit the Productivity Hub HERE