Time moves on…

My son turned 18 a couple of months ago, and just like that, my little boy is now an adult—independent, determined, and fearlessly carving out his path in life.

As a mum, it’s a tough reality to accept. I’ve made plenty of mistakes along the way, and the last thing I want is for him to repeat them.

But I know I have to step back and let him make his own mistakes because, in truth, that’s how I learned the most.

We don’t grow from getting everything right; we grow from stumbling, picking ourselves up, and trying again.

Bram Stoker said it best: “We learn from failure, not from success.”

Failure is often the first step toward getting better at something.

If you’re trying something new and don’t mess it up the first time, you’re probably not pushing yourself hard enough.

Mistakes are part of the journey—they teach us, shape us, and help us improve.

However, when it comes to business, let’s face it: nobody enjoys making mistakes, as they can lead to wasted time, effort, and resources.

As one of the top agencies in the Mailchimp world, we’ve analysed countless accounts and noticed that many businesses fall into the same traps, particularly during the initial setup of their Mailchimp accounts, often without realising they’re heading in the wrong direction.

Learning from our mistakes is vital for growth, but first, we need to identify what those errors are.

Chances are you may be making the same ones without even knowing.

Below, we’ve highlighted the 9 most frequent mistakes we encounter in Mailchimp accounts.

Before launching your next campaign, take a moment to review your Mailchimp for these potential pitfalls that could be costing you leads, opens, clicks, and ultimately, revenue!

Mistake No. 1 – Not getting consent

It might seem like a no-brainer, but this mistake still pops up a lot. Your contacts must give clear consent before you can send them marketing emails.

Simples.

Consent is one of the most important aspects of GDPR compliance. It’s important for you as a business to ensure that you get explicit consent from your customers before sending them any promotional emails or other marketing materials.

Sending emails without proper consent can lead to legal issues, such as fines for violating GDPR or CAN-SPAM regulations.

Additionally, it can damage your reputation and result in high unsubscribe rates or being marked as spam, hurting your deliverability.

Plus, it’s just good marketing practice… think about it.  When someone consents, their “expecting” your email – so when you send it, it’s much more likely to be opened, read and clicked.

Consent equals a much better performance in your emails.

Solution: Make sure you have clear consent from your subscribers by ensuring your sign-up process clearly communicates how the subscriber’s email will be used.

Make it a habit to frequently review and clean your subscriber lists to remove anyone who hasn’t provided their consent.

Never add people to Mailchimp who you don’t have permission to email.

Mistake No. 2 – Not being consistent

In email marketing, consistency is crucial—it’s what helps build a strong, reliable relationship with your audience.

When your emails arrive regularly and with content that meets their expectations, subscribers begin to trust your brand and look forward to what you have to offer.

(If you’re wondering about frequency, a weekly email works as a good baseline balancing engagement and avoiding email fatigue.)

Just imagine the impact of sending emails sporadically or with inconsistent messaging; your audience would be confused, disengaged, and might even tune you out completely.

Solution: By maintaining a consistent schedule and delivering valuable content every time, you create a predictable, stable environment where your subscribers know exactly what to expect—and that’s when real engagement happens.

 Mistake No. 3: Having Multiple Audiences

This used to be the biggest mistake we see Mailchimp users make.
People set up a separate audience for each group or segment they want to market to.

We see it a bit less than we used to as you can’t create multiple audiences in new free accounts now – but we still regularly see it in more mature Mailchimp accounts.

It’s easy to do, not to mention tempting to upload new contact lists for each campaign that you create – our advice?

Don’t.

As a result, you’ll end up with numerous audiences in your account, with different names but also with duplicate contacts and the more audiences you have in your Mailchimp account, the more problems you’re going to have.

Having multiple audiences can lead to duplicated contacts, inconsistent messaging, and higher costs, as Mailchimp charges based on the total number of contacts across all audiences.

It also makes it difficult to manage your lists and segment your audience effectively.

Solution:Put all your contacts into a single audience then use tags or groups to organise them.This will help you manage all your data whilst reducing costs, and allowing for more effective segmentation and targeting.

Mistake no 4: Not having a ‘clean’ database

An account filled with inactive subscribers or outdated information can harm your email deliverability and engagement levels.

This may lead to your emails being flagged as spam or overlooked by your audience.

Also, the fact is that if you’re on a Standard, Essentials, or Free account, subscribers, non-subscribers and unsubscribed contacts go against your account allocation, which may cost you more money in the long run.

Solution: Regularly clean your account by removing bounced emails, unsubscribed contacts, and inactive subscribers.

Use re-engagement campaigns to identify and retain interested contacts, and delete those who remain unresponsive.

Mistake No. 5 – No Welcome Automation

Yay, someone’s just subscribed to your list! …Now, what?

If your answer isn’t “send them a welcome email,” you’ve got it all wrong…because the most important emails you ever send to someone are the first ones.

The first few emails that you send to your subscribers are crucial, because they set the tone for future communications.

They are a big part of helping create the recipient’s first impression of you. You have their attention and mind share, so use this short time to make an impact.

When you send an email to someone for the first time, it’s likely the first time that their email software has encountered you too… and consequently, that first email, and how the recipient reacts, will start to train their software in how to react to your email.

So a good (and timely) welcome email will not only create a good impression but will help ensure that all future emails bypass the spam folder and hit the inbox.

Solution: Set up an automated welcome sequence that introduces your brand, sets expectations, and provides value to new subscribers. This helps establish a strong connection and keeps them engaged from the beginning.

Mistake no 6 – Worrying Too Much About Design, Not About Content

What’s the point of having a pretty email if it doesn’t resonate with your audience?

You need to focus on your content as poor content can result in low engagement, high unsubscribe rates, and a lack of action from your subscribers.

Solution: Focus on producing meaningful and relevant content that resonates with your audience’s needs and interests. While design is important, the heart of your campaigns should be the content itself. Make sure it’s meaningful and relevant—because that’s what really connects with people.

Mistake no. 7- No Feedback Loop

You need to measure the performance of your campaigns to understand what’s working and what isn’t.

That’s where tracking the right email marketing metrics comes in.

By tracking these metrics, you can gain valuable insights into how your email marketing campaigns are performing. This information can help you improve your campaigns and get better results.

Solution: Regularly review your email reports, including open rates, click rates, bounce rates, and other key metrics. Use this data to refine your strategies, test new approaches, and continuously improve your campaigns based on what’s working and what’s not.

Mistake No. 8 – Not Tracking Sources (knowing where people sign up)

Knowing how to use forms effectively, is one of the biggest routes to success there is in Mailchimp, yet the one thing that people miss when it comes to forms is being able to track which form someone fills in.

If you’ve only got one form on your website, this isn’t really an issue… but if you’ve got more than one, chances are you’ll want to know which one someone completed to get into your data – because in many instances, you’ll look to treat them differently based on the form they completed.

Solution: Whenever someone completes a form or joins a database, make sure they are given a tag based on where they signed up.

Mistake no 9 – No Segmentation

You have to relevant right?

Sending the same message to your entire list without segmentation can lead to irrelevant content for many subscribers, resulting in lower engagement, higher unsubscribe rates, and missed opportunities for targeted marketing.

Solution: Segment your audience based on things such as demographics, behaviour, purchase history, or engagement levels. Tailor your messages to these segments to ensure relevance and increase the likelihood of engagement and conversion.

Wrapping Up

As we’ve seen, even the most straightforward mistakes in Mailchimp can have a big impact on your email marketing success. From not getting proper consent to not tracking where your leads come from, each misstep can cost you time, money, and valuable opportunities.

But here’s the good news: awareness is the first step toward improvement.

By understanding these common pitfalls and addressing them proactively, you can optimise your Mailchimp strategy and make the most of your marketing efforts.

Don’t let these mistakes hold you back.

Take a moment to review your current setup, make necessary adjustments, and keep an eye out for areas where you can enhance your campaigns.

After all, in the world of email marketing, every small tweak can lead to big results. So go ahead, refine your approach, and watch your campaigns thrive.