I once watched a smart junior marketer build a beautiful HubSpot dashboard. Open rates and click rates, all color coded. Then her manager asked, “So what should we change next week?” Silence.
That silence is the whole problem. Most email training teaches people to report. Almost none of it teaches them to decide.
The Skill Nobody Actually Trains
Here is the difference. A report is a record of what happened. An insight is a guess about what to do next, backed by the data.
Anyone can export a spreadsheet. Fewer people can look at a 14 percent open rate and say, “Our subject lines are the leak.”
That translation step is where the training budget should go.
Start With the Decision, Not the Metric
Teach your junior to walk into every review with a question already in hand: “Should we send this campaign again?”
When the decision is clear, the metric picks itself. If you want to know whether a subject line worked, you look at opens. If you want to know whether the offer landed, you look at clicks.
To anchor this, use one number your whole team watches. According to Litmus benchmarks, the average email open rate is near 21 percent and click rates hover around 2.3 percent.
That means most of your list ignores most of your emails. Real insight lives in the gap between those two numbers.
The One Formula Worth Memorizing
Click-to-open rate (CTOR) tells you whether the people who opened actually cared. The math is simple.
CTOR = unique clicks / unique opens x 100
Suppose a campaign gets 8,000 opens and 400 clicks. That is a 5 percent CTOR. Now compare it to last month’s 2.5 percent. The list held steady. The offer and the body copy changed.
CTOR separates two very different problems. Low opens point to subject lines and send timing. Low CTOR points to what is inside the email.
Give Her a Live Campaign, Not a Certificate
Course completion proves nothing. Assign a real send and ask for a one-page recommendation.
The format can be short: What happened? What do we change next time?
Cap it at 200 words. This forces sharp thinking and kills the urge to hide behind tables.
When she brings you a recommendation instead of a screenshot, the training is working.
Numbers That Turn Into Money
Opens and clicks are diagnostic. Two other figures connect email to the business.
Revenue per email = campaign revenue / emails delivered
If a send to 50,000 people earns $10,000, that is 20 cents per email. Next time you can predict the return before you hit send.
Then there is list health. List growth rate = (new subscribers – unsubscribes) / total list x 100
A shrinking list makes every other metric look worse over time. Track it monthly and the trend tells you more than any single campaign.
How to Vet a Course in Ten Minutes
Ask for the syllabus and search it for one thing: practice with real data. Definitions are free online. Guided analysis on messy, real campaigns is what you are paying for.
Look at who teaches it. Someone who ran campaigns will talk about failed sends. A pure presenter will talk about slides.
Skip any workshop that ends with a quiz. Pick the one that ends with a recorded review of your own work.
Signs the Money Was Well Spent
Watch for small signals. She flags a segment that always underperforms. She stops sending reports nobody reads.
The One Thing to Do This Week
Before you buy any course, change the assignment. Ask your junior to pick one live campaign and bring back a single sentence: “Here is what we should change and here is the number that proves it.”
If she can do that already, save the budget. If she cannot, that is exactly what to train. Find a course built around live analysis.