Why a newsletter intro is what moves open rate the most
Inboxes like Gmail show the first 2-3 lines as preview, alongside subject and sender name. A subscriber decides in less than 2 seconds whether to open or archive. The intro must confirm the subject's promise and add an extra pull.
Common mistake: starting with "Hi friends" or "Hope you're doing well". Those phrases burn preview characters without adding value. What the subscriber sees: "Interesting subject. Preview: 'hi, hope you're well' — archive."
The 4 intro structures that perform
- Short personal story: "Three years ago I lost $2,000 on my first investment. Here's what I learned."
- Question + context: "Do you know you should invest but don't know where to start? Same here for years."
- Surprising data: "70% of freelancers don't have 3 months of savings. The reason isn't what you think."
- Direct opinion: "Saying investing is complicated is an excuse the financial industry sold you."
What does NOT work in newsletter intros
- Long greetings: "Hi, hope you've had a great start to the week and..."
- Self-reference: "In this edition of my newsletter I'll tell you..."
- Recap of previous email: "Last week we talked about X, today we continue..."
- Excuses or disclaimers: "Sorry I haven't written in 3 weeks, I was traveling..."
- Vague promises: "Today I'm bringing you something interesting about..."
How to connect the intro with the subject line
The subject creates curiosity, the intro confirms and deepens it. If the subject is "The mistake that almost ruined my first investment", the intro must start at that exact moment, not 3 paragraphs from the incident. Patterns that work:
- Subject question + intro answer: Subject "Why does almost no one have a financial plan?" + Intro "The reason isn't laziness. It's this."
- Subject claim + intro evidence: Subject "Investing 10% isn't enough" + Intro "I ran the numbers with 50 freelancers. Here's what I found."
- Subject mystery + intro reveal: Subject "What I learned losing $2,000" + Intro "In 2021 I made the worst investment of my life. Here's what happened."
Personalization vs authenticity
Platforms like ConvertKit, Mailchimp or Klaviyo allow personalization with merge tags like "Hi Martin". Personalization works if done right: just the name is generic noise today. Better:
- Personalize by segment: "For freelancers paid in USD" outperforms "Hi Mary".
- Mention the source: "You signed up for tips on X" reminds context.
- Consistent tone: if your newsletter is direct, the intro is too. If narrative, intro starts with scene.
"Preview text" as a second chance
Some email clients let you set a "preview text" separate from the body. It's a string that appears next to the subject but not in the body. Use it:
- Complement the subject: if subject is "5 investing mistakes", preview can be "#3 happened to me".
- Add curiosity: "The mistake that costs $5,000/year".
- If you don't set it, clients show the first body words, so your intro must double-duty.
How to test intros
ConvertKit, Mailchimp, Klaviyo and Substack allow subject A/B tests. Intros are harder, but you can:
- Keep subject constant and rotate intros between editions.
- Measure click-through rate (CTR) — best proxy for "did the intro work?".
- Use tools like Litmus to preview across clients.
- After 5-10 sends, identify the highest-CTR pattern and replicate.
Common mistakes that kill open rate
- Image as first element: Gmail doesn't load by default and leaves a gap.
- Too much HTML at the start: clients show code before text.
- Footer at top: "If you don't want emails anymore..." at the start kills open rate.
- Weird typography: emojis, special fonts or odd ASCII chars trigger spam filters.
- No temporal context: "I'm writing today because..." is generic. Better "Three hours writing this email and...".