What To Test In Your Emails So You Are Not Just Guessing
A lot of email advice says “test everything.” That sounds smart until you open your email tool and have no idea where to start. You do not need a lab coat or a massive list to learn from simple tests. You just need to test one thing at a time, look at a few numbers, and let those numbers nudge you in a better direction.
Quick definition: what is an A/B test?
An A/B test is when you send two versions of an email to different slices of your list to see which one does better. Version A might have one subject line. Version B has a different subject line. Everything else stays the same. You look at the results, pick a winner, and use that insight next time.
Start here: what to test first
If you are a small business, start with simple tests that give you answers fast.
Subject lines: This is usually the easiest place to start. Try short versus slightly longer, question versus statement, or playful versus straightforward.
Calls to action: Test different button text, like “Book a free strategy call” versus “See ways we can work together.” Keep the rest of the email identical.
Send times: Try the same email at two different times, for example morning versus afternoon on the same day, and see which group opens more.
Each test is just one small change. That is how you know what actually moved the needle.
How to run a simple test
Here is a basic flow you can reuse.
Pick one goal: For example: “Get more people to click through to my services page.”
Choose one thing to change: Maybe you change only the subject line or only the button text. Not both.
Split your list: Most email tools can send version A to part of your list and version B to another part automatically.
Send both versions at the same time: That keeps timing from messing with your results.
Wait at least a day before you judge: Many guides recommend 24 to 72 hours so people have time to open.
Look at a few key numbers: For subject line tests, focus on open rate. For button or layout tests, look at click‑through rate and maybe replies.
You do not need a perfect test. You just need a clear “version A did a bit better than version B” so you know which direction to move.
Test ideas that work for most small businesses
Here are a few specific tests you can try over the next few months.
Short versus longer subject lines: Some audiences like quick, punchy lines. Others respond better to a bit more context.
One main call to action versus several links: Test a single clear button against an email that has three different links and see which version gets more clicks on the button you care about.
Story first versus tips first: In one version, start with a quick client story. In the other, open with a straight list of tips. Check which one leads to more clicks or replies.
You do not need to run all of these at once. Pick one, run it, then move on to the next.
A few things to avoid
Testing can be fun, but there are a few easy ways to confuse yourself.
Do not change five things at once: If you change the subject line, the layout, and the offer, you will not know what worked.
Do not stop a test after ten minutes: Give it time so more of your list has a chance to open the email.
Do not chase tiny differences: If version A gets 22 opens and version B gets 23 opens, that is basically the same. Look for patterns over a few tests, not one tiny win.
The bottom line
Testing your emails is not about perfection. It is about learning a little faster than you would by guessing.
Pick one simple thing to test, pay attention to the numbers, and keep the parts that work. Over time, your emails get clearer, more effective, and a lot less stressful to send.
