How To Test Email Campaigns Using 3 Different Tools

Experimentation is often underrated in email marketing because it takes time and patience. Yet testing your campaigns may be the most reliable way to make sure they achieve their goals.

Your customers' behavior is a better guide than anyone's opinion in a meeting, including yours. Here are the fundamentals of email testing, how to do it in three widely used tools, and the benefits of making it a habit.

Understanding the Value of Testing in Email Campaigns

Successful email marketing depends on knowing your audience's preferences. However good your content is, it will not deliver if it does not resonate with recipients.

Testing lets you try different versions and see which one your readers actually respond to.

If you know the basics, you know the key metrics. The aim is to improve them: strong click through rates show interest, and solid conversion rates mean more sales and bookings.

One effective approach is to send variations to a portion of your audience and compare the reactions. You learn which offers and messages appeal most, and use those insights instead of guesswork.

Testing also teaches you about your customers, so you can segment more effectively. The more precise your segments, the better your personalization.

Quality checks, such as spam and rendering tests, make sure your emails reach the inbox and display correctly, which is just as important as the content. Better deliverability means more of your audience actually sees your message.

How to Set Up an A/B Test Email Campaign in Three Steps

Email testing falls into two broad categories: quality assurance testing and split testing, also known as A/B testing. Here we focus on A/B testing, which takes more planning.

Quality checks are straightforward: you know what to look for, and tools can automate much of it. A/B testing is a cycle of three steps you repeat regularly.

1. Decide What, How and Who to Test

Many elements affect a campaign's success, and which matter most depends on your goal. Subject lines and preview text affect opens; your call to action (CTA) affects clicks. Layout, offers, send time and length are also worth testing.

Test one element at a time. If you change several things at once, you will not know which change made the difference.

Then decide how you will measure success. Which metric decides whether version A or version B wins? Because privacy features now distort open rates, clicks or conversions are usually the better deciding metric, even for subject line tests.

Finally, decide your sample size. With a small list, differences between versions are often down to chance, so test on as large a share as you can, and look for consistent results across several sends before changing your whole approach.

2. Create Distinct Email Versions

With planning done, create your variations. Tiny tweaks rarely reveal much, so make the versions meaningfully different.

For example, when testing subject lines, try contrasting approaches. One version might say "Get 20% off your next order" and another "A little surprise inside". The first is direct; the second plays on curiosity. The result tells you whether your audience prefers straightforward offers or intrigue.

Send each version to its test group and wait for the results.

3. Act on the Findings

The purpose of A/B testing is to improve, so apply what you learn. If the curiosity subject line wins clearly and repeatedly, your audience may respond to intrigue. A single test only tells you about the element you changed, so be careful not to read too much into it.

Look at other metrics for more insight, and generalize with caution. A playful tone might work in subject lines but not in the body of the email. Decide which lessons to apply broadly and which only fit their context.

How to Test Email Campaigns Using Three Popular Tools

Business email campaigns need marketing tools rather than a personal inbox. These tools support planning, content creation and performance tracking, and they all include testing. Menu names change as the tools are updated, so check each tool's help center for the current steps.

1. Testing in ActiveCampaign

ActiveCampaign is popular for its automation features and offers several testing options:

• Email preview. See how your email looks on desktop and mobile screens and adjust the layout accordingly.
• Test emails. Send a test to yourself and colleagues to check content, links and personalization.
• Inbox preview. See how your email will look in different inboxes, including the preview text, which helps you write sharper subject lines.
• Split testing. Choose the split testing campaign type, create your variations, and decide whether to send them evenly or test on part of the list and send the winner to the rest.

2. Testing in Campaign Monitor

Campaign Monitor also provides several testing options:

• Inbox tests. Check how your email renders across different email apps before sending.
• Test send. From the campaign checklist, send a test to a small number of addresses.
• Preview and personalization. Preview different screen sizes and check that dynamic content displays correctly.
• A/B testing. Set up an A/B test, choose what to test, the size of the test group and how the winner is chosen, then send now or schedule it.

3. Testing in Mailchimp

Mailchimp is one of the best known email platforms, valued for its range of features and ease of use:

• Preview and test. Use preview mode to check content and layout on desktop and mobile, and send a test email to yourself and your team.
• Link checking. Check that every link works before you send.
• A/B testing. Create an A/B test campaign to compare subject lines, sender names, content or send times. Mailchimp sends the variations to a test group and can send the winner to the rest of your audience automatically.

Testing in these tools lets you refine content, layout and timing so your emails are effective and engaging.

Test Your Email Campaigns to Improve Them

When not to bother: if your list is a few hundred people, a formal A/B test will rarely give you a clear winner. Do the quality checks on every send, and save split tests for decisions you will reuse many times, such as your welcome email or your regular newsletter format.

If you run a venue, your guest WiFi can make testing more useful by showing whether a campaign actually brought people back. VoqadoWiFi collects guest emails with consent through your branded WiFi login on TP-Link Omada or Ubiquiti UniFi, records each login in your guest list, and on the Growth plan syncs your list to Mailchimp if you test and send there. Starter is free forever for one location and 500 guest logins a month. Create a free account or read about measuring campaigns by return visits.