Email newsletter template: the seven blocks, two filled issues, and the lines every send has to carry

A newsletter template is two things at once: a skeleton that never changes, so the issue can be written in forty minutes, and one slot that changes every time, which carries the single job of that send. Newsletters stop working when the skeleton goes missing and every issue becomes a new design decision, or when the job goes missing and the issue becomes a list of things that happened. The structure below is seven blocks, a copyable version is in the middle, and the legal footer at the end is the part that is not optional in the United States.

The seven blocks

Block	Its job	Length
1. Subject line	Say what is inside, in the words the reader would use	Six to nine words
2. Preview text	Add the fact the subject line left out, never repeat it	Up to about 100 characters
3. Opening line	Name this issue's one job in a sentence the reader can act on	One or two sentences
4. The main item	The reason the issue exists: one idea, explained, with the useful detail included	150 to 300 words
5. Two or three short items	The rest of what is worth knowing, one line each, each with its own link	One line each
6. One action	The single thing to do, stated as an instruction	One line, repeated once at the end
7. The footer	Who sent it, from where, and how to stop receiving it	Three lines, identical every issue

Blocks one, two, three and seven are the template. Blocks four to six are the issue. If a block is hard to fill, send without it rather than padding it, because a short issue that arrives on time beats a complete one that slips a week.

The template, ready to copy

Square brackets are the parts you replace.

• Subject: [What is inside, in plain words]
• Preview text: [The second fact, plus the time it takes to read]
• Opening: This month: [the one job]. If you only read one thing, read [item].
• Main item heading: [The idea, stated as a claim rather than a topic]
• Main item body: [What changed or what you learned]. [Why it matters to this reader]. [What to do about it, concretely]. [Link to the longer version.]
• Also this month: [One line and a link]. [One line and a link]. [One line and a link].
• Action: [One instruction, with the link on the instruction itself]
• Sign off: [A named person], [role], [company]
• Footer: You are receiving this because [reason]. [Company legal name], [full postal address]. [Unsubscribe].

Filled issue one: a B2B software list, monthly

• Subject: The onboarding step most teams skip
• Preview text: Four minutes, plus the checklist we now send new accounts
• Opening: This month: getting a new team to the first useful result in week one. If you only read one thing, read the checklist.
• Main item: Across accounts that started in the last quarter, the ones that imported their own data in the first week were the ones still active in month three. The step takes about twenty minutes and it is the step that gets postponed. Here is the order we now recommend, the two fields that cause most import failures, and the checklist we send with every new account.
• Also this month: A faster export, now covering date ranges. A short write up of how one team structured their workspace. Office hours on the second Tuesday, with a link to join.
• Action: Import your own data and book a twenty minute setup call if anything sticks.
• Sign off: A named person, with a reply address that a person reads.

Filled issue two: a local shop, fortnightly

• Subject: New arrivals, and we open late on Thursday
• Preview text: Six new lines in, plus Thursday hours until eight
• Opening: Two things this fortnight: the new stock is on the shelves, and Thursday evenings are now open until eight.
• Main item: What arrived, who it suits, what it costs, and one sentence on why it was chosen. A photograph of the actual shelf rather than a supplier image, because the shelf is the thing a local reader recognises.
• Also this fortnight: The repair service has a two day turnaround again. Two staff picks. The Saturday workshop has four places left.
• Action: Reserve anything by replying to this email, and we will hold it for forty eight hours.
• Sign off: The owner, by name.

Cadence, and the rule that keeps it

Pick the interval you can hold in your worst month, not your best one. Monthly is sustainable for almost everybody, fortnightly suits a business with genuine new stock or news, and weekly needs either a team or a very narrow subject. Write the next issue's subject line the day you send the current one, while you still remember what you left out. Three issues at a steady interval teach a reader when to expect you, which is most of why newsletters get opened at all.

One job per issue is the other rule. An issue that asks for three different things gets none of them, and an issue carrying nine items is a list rather than a letter. Choose the job first and the items follow.

The footer, which United States law sets for you

Commercial email to recipients in the United States falls under the CAN-SPAM Act, enforced by the Federal Trade Commission. Five requirements decide what the bottom of every newsletter looks like.

• Accurate sender information. The from name, the reply address and the routing information identify who actually sent it.
• A subject line that matches the content. A subject describing something the email does not contain is the clearest violation in the whole Act.
• A valid physical postal address. Your current street address, or a registered post office box or private mailbox that meets the Postal Service rules. This is the line most new senders leave out.
• A clear way to opt out, visible and easy to find, with no fee, no login requirement and no form asking why.
• Opt outs honoured within ten business days, and the address kept on a suppression list afterwards rather than deleted and later re-imported.

Penalties are set per email and adjusted for inflation, so take the current figure from the Federal Trade Commission's own CAN-SPAM compliance guide rather than from any blog, including this one. If you also mail readers in the United Kingdom or the European Union, consent rules bite earlier than they do in the United States, and the safe design is one consent record per subscriber with the date and the source stored against it.

What to read after a send

• Clicks and replies. Apple's Mail Privacy Protection, on by default since 2021, preloads images for Mail users, which means the open rate now counts preloads alongside people. Clicks and replies are the numbers that hold their meaning.
• Click to open by item. Which block earned the click tells you what next month's main item should be.
• Unsubscribes per thousand. A steady low number is health. A spike points at the subject line or at a list segment that never asked for this.
• Reply content. The most useful output of a small newsletter is the three people who answer. Read those before the dashboard.
• A benchmark for your own industry, since rates differ widely between sectors. The ranges and how to read them are in email marketing benchmarks.

What you send it from

Any tool that holds a list, renders a template and handles unsubscribes will do this. The choice matters for automation, deliverability and what happens when the list grows, and the four kinds of platform are compared in email marketing platforms for a small business. Businesses already inside one software suite often have a sender included, and which product in that suite to use is a question worth settling early, as it is for Zoho's mail and campaign products, where the mailbox and the bulk sender are two different things.

Newsletter questions worth a straight answer

How long should a newsletter be?

One main item of 150 to 300 words plus two or three one line items. That is a two minute read, which is the length people finish. Longer belongs on a page with a link from the newsletter.

Should the whole article go in the email, or a link?

Put the useful part in the email and link the detail. An email that is only a teaser trains people to ignore it, and an email carrying a full 1,200 word article gets saved for later and never read.

How do I write the subject line?

Write the issue first, then describe it in the words the reader would use. Specific beats clever: the thing that was announced, the number that changed, the date that matters.

Do I need a designed template?

A single column, left aligned, with real text and one image renders correctly everywhere and loads in a dark theme. Heavily designed multi column templates break first on phones, which is where most of the list reads.

How do I grow the list without buying one?

One form, one promise, stated as what arrives and how often. Put it where people already are: the checkout, the thank you page, the invoice footer, the end of your most read page. Bought lists arrive without consent, which breaks the footer rules above before the first send.

What do I do with people who never open?

Send a short re-permission issue asking them to click once to stay, then move the rest to a suppression segment. A smaller list that reads you is worth more than a large one that does not, in deliverability as well as in sales.

The letter you did not write, assembled by something else

A newsletter is the one channel where you choose every word a customer sees. There is now a channel where you choose none of them: a buyer asks ChatGPT, Gemini, Perplexity or Claude who to use in your category and gets back two or three companies with a sentence of description each, written from whatever those systems have read about you. For a business that has spent two years writing careful issues to its own list, the gap between the two descriptions is worth looking at. AI Knows Us asks those buying questions across the main assistants and records who gets named and what the answers were built from.