Email Newsletter Best Practices: Write Newsletters People Read

I've written or edited somewhere north of 400 email newsletters over the past 8 years. Client newsletters, my own newsletters, newsletters for founders who thought "I just need someone to write it for me." I've seen what works and what doesn't, and the patterns are pretty consistent.

The newsletters people actually read are not the most polished ones. They're the ones that feel like they came from a person who has something to say, and who respects that their reader's time is limited. Here's how to build that.

Subject Lines: The Only Metric That Gets You Read

Everything starts with whether someone opens the email. Your subject line is making a promise or asking a question. If the promise or question is interesting enough, they open. If it isn't, they don't. Nothing else matters until you get that open.

Tactics that work better than generic "monthly update" subject lines:

• Specificity: "The one change that doubled our trial signups" beats "Newsletter #47" by a large margin
• Curiosity gap: "I was wrong about this" makes people want to know what you were wrong about
• Direct utility: "3 things to do before Q2 ends" tells them exactly what they're getting
• Personal: "Honest question" or "I need your help" feel like they're from someone, not a company

Keep subject lines under 50 characters where possible. Most mobile email clients will cut anything longer. And test your subject lines. If you're sending to a large enough list (1,000+), most email platforms support A/B testing on subject lines. Use it.

The Opening Line: Earn the Rest of the Email

The opening line of your newsletter is the second gate your reader has to walk through (the subject line being the first). Most newsletters fail here because they start with context instead of content. "Hello everyone, it's been a busy month here at [Company]!" is a way to start a newsletter that makes people immediately look for the unsubscribe link.

Start with something that has energy. A question. An observation. A short story. A surprising fact. Anything that signals to the reader that this email is going to be worth their time.

One technique that works: open with the most interesting thing in the newsletter. Don't save your best stuff for the middle. Lead with it.

Structure and Scannability

Most people don't read newsletters. They scan them. Write for how people actually read, not how you wish they would.

Practical implications:

• Short paragraphs. 2-3 sentences max. White space is not wasted space.
• Use headers if your newsletter is longer than 400 words. Let people jump to what interests them.
• Bold the most important phrases. One or two per section, not every sentence.
• Put your most important link high up, not buried at the bottom after you've explained everything.

If you're using a template with multiple sections, make sure each section has a clear title and that the titles tell the reader what's in that section. "Quick Links" is less useful than "3 Articles Worth Your Time This Week."

Finding Your Newsletter's Voice

The newsletters with the highest engagement I've seen are the ones that sound like a specific person. Not a brand. Not a team. A person.

This doesn't mean you have to share your personal life. It means having opinions. It means admitting when something didn't work. It means occasionally saying "I don't know" or "I changed my mind on this." Those moments of honesty create the kind of trust that keeps people subscribed for years.

The corporate newsletter voice (passive voice, no opinions, "we are pleased to announce") is the voice of a newsletter that people are subscribed to but don't actually read.

Content Repurposing: Making Newsletters Easier to Produce

One question I get often: where does the content actually come from? Writing a newsletter every week or every two weeks is a real time commitment.

My honest approach: most newsletter issues I write for clients are assembled from content that already exists somewhere. A blog post that ran last month. A thread from X that got engagement. A LinkedIn post that sparked good comments. That content already exists and it already proved people found it interesting. Repackaging it for email, with the conversational framing that email requires, is faster than writing from scratch.

Tools like Reslice can help with this. Paste a blog post or longer piece of content and generate an email-formatted version. You still need to edit it for your voice, but you're starting with something rather than a blank page.

How Often Should You Send?

Consistency beats frequency. A newsletter that comes every Tuesday will build a habit in your readers. A newsletter that comes "whenever there's something worth sharing" will gradually become something your readers have forgotten they subscribed to.

For most content-focused newsletters, weekly or bi-weekly is the right cadence. Monthly is too infrequent to build real engagement. Daily requires an extraordinary amount of content and a very specific type of audience.

Pick a cadence you can actually maintain for 6 months, not the one that sounds most impressive.

Growing Your Subscriber List

The most effective ways I've seen to grow a newsletter list:

• A specific, concrete promise about what subscribers get. "Weekly tips on X" is better than "subscribe for updates."
• A lead magnet that's genuinely useful (a checklist, a guide, a template), not just a bribe
• Cross-promotion from other platforms where you already have an audience
• Making it easy to subscribe from every piece of content you publish

What doesn't work: buying lists, scraping emails, or "refer a friend" schemes that feel like pyramid structures. You want subscribers who actually want to hear from you. 500 engaged subscribers will convert better than 5,000 unengaged ones.

Metrics That Tell You Something Useful

Open rate tells you how good your subject lines are. Click rate tells you how compelling your content and CTAs are. Unsubscribe rate tells you if you're sending too often or drifting from what people expected when they signed up.

The metric I actually care most about for clients: replies. If people are replying to your newsletter, you're doing something right. Replies are the highest signal of engagement and they're also good for email deliverability (because they signal to email providers that people want to receive your mail).

Ask questions at the end of your newsletter that invite a reply. "What's the biggest challenge you're facing with X right now?" One question, one reply box. You'll be surprised how often people respond when you ask directly.

The Bottom Line

The best newsletter I've ever seen is one a founder sends to about 3,000 people every other Thursday. It's about 600 words. It's honest. It has opinions. It's occasionally wrong and he says so in the next issue. His open rate is 47%. The industry average is around 21%.

He doesn't use a fancy template. He doesn't A/B test his subject lines. He just writes like a person who thinks his readers are worth his real thinking, not a polished summary of what everyone else is already saying. That's the whole thing.