New guide: how to warm up a dedicated IP without hurting your reputation. Read now →
Log in
MigoSMTP
Sending and campaignsUpdated 18 Oct 2026

Email Newsletter: How to Start One, Format, Content Ideas and Examples

What an email newsletter is, ten steps to start one, what goes in an issue, six formats you can adapt, content ideas, how to grow and measure the list and how to keep a newsletter out of spam.

IR
Written by Ishita Rao
Email Authentication Engineer
Reviewed by Hannah Mitchell
  • Published2 Oct 2026
  • Read time6 min
  • Length1,226 words
Share this guide

An email newsletter is a regular message sent to people who chose to receive it. It can carry news, articles, tips, product updates or a mix, and it gives you a direct, repeatable way to reach your audience without depending on a social platform's algorithm. Starting one is easy; keeping one going, getting it delivered and making it worth opening are the real work. This guide explains what an email newsletter is, how to start one step by step, what format works, how to choose content and a schedule, how to grow and measure it and how to keep it out of the spam folder. It ends with examples of newsletter formats you can adapt.

Purposedecide what the reader gets and why they will keep opening
Rhythma regular schedule you can keep for months
Permissiononly subscribers who asked, with an easy way out

What is an email newsletter?

A newsletter is a recurring email sent to a list of subscribers. The word covers everything from a company's monthly product update to an independent writer's weekly essay. What defines it is the relationship: readers signed up, they expect it at a predictable rhythm and the sender keeps a promise about what it contains. A newsletter differs from a one-off promotional email, which sells a single thing, and from a transactional email, which confirms an action. See email marketing: what it is for the wider picture.

How to start an email newsletter

1. Define the purpose and the audience

Write a single sentence: "This newsletter helps [who] to [achieve what] by sending [what] every [how often]." If you cannot finish the sentence, the newsletter is not ready. Think about who will read it and what they will do with it. A focused promise beats a general "news and updates".

2. Choose a name and sender identity

Use a name that tells readers what to expect. Send from a recognisable person or brand name and a real address that accepts replies. A reply address makes the newsletter feel human, and replies help how mailbox providers see your mail. See the no-reply address guide.

3. Choose a sending platform

You need software that stores your subscribers, sends your messages, handles unsubscribes and reports results. Do not send a newsletter from an ordinary mailbox with everyone in the BCC field, because mailbox providers limit this and it is not reliable. Compare options in email marketing software and platforms for small businesses. If you build your own, send through an email API or SMTP relay.

4. Set up your domain properly

Authenticate the domain you send from with SPF, DKIM and DMARC, and avoid sending newsletters from a free mailbox address. This is one of the biggest factors in whether newsletters reach the inbox. See authenticating your sending domain.

5. Create a sign-up form and a welcome email

Place a short form where readers already are: your site, blog posts, a dedicated landing page. Say what they will get and how often. Consider confirming the address with a link; see double opt-in. Then send a welcome message at once that restates the promise and invites a reply. See welcome email examples.

6. Plan content for the first ten issues

List ten possible issues before you send the first. If you struggle to list five, you may need a narrower topic or a plan to collect material as you go. Mix formats: a main story, a quick tip, a link or two, a question to readers.

7. Choose a schedule you can keep

A smaller, steady newsletter beats an ambitious one that fades. Weekly, fortnightly and monthly are common. Pick a day and time and test later. See how to find your best send time.

8. Design a simple template

One column, readable text, a clear header, one main call to action and a footer with an unsubscribe link and your postal address if the law of your country requires it. See newsletter design and layout and email footer examples.

9. Write, test and send

Write the issue, read it aloud, check every link and send a test to several mail apps. Run a spam check. See the spam checker guide.

10. Review and improve

After each issue, note which links were clicked, what readers replied to and how many unsubscribed. Adjust.

Email newsletter format: what goes in an issue?

There is no single right format. These are common building blocks:

  • Subject line and preview text that tell readers what is inside. See email subject lines.
  • A short header with the newsletter name and, optionally, the issue number or date.
  • An opening of two or three sentences that sets up the issue.
  • The main item, either a full piece of writing or a teaser with a link to the full text.
  • Secondary items: tips, links, news, a short product note.
  • One clear call to action. If everything is a button, nothing is.
  • A sign-off with the author's name and an invitation to reply.
  • A footer with the unsubscribe link, the reason for receiving the email and your contact details.

Keep the length proportional to the value. A newsletter that reads in two minutes and is useful is better than a long one that readers skim.

Newsletter formats you can adapt

FormatWhat it isGood for
Curated linksA short introduction and a handful of annotated linksIndustry news, research, tools
Single essayOne piece of writing per issueWriters and experts
DigestA summary of the week's posts, products or eventsPublishers, communities, stores
Tips and how-tosOne lesson per issueSoftware, training, services
Product updatesNew features and changes, in plain languageSaaS companies
Offers and dropsNew items and promotionsShops, with other content as well

Content ideas for a newsletter

  • Answers to questions customers ask repeatedly.
  • Behind-the-scenes notes about your work.
  • Case examples, with permission.
  • Short guides and checklists.
  • Recommendations of tools, books and people.
  • Reader questions and your answers.
  • Seasonal reminders relevant to your audience.

How to grow your newsletter list

Offer a clear reason to subscribe, place forms on high-traffic pages, mention the newsletter at the end of articles, ask for sign-up at checkout with a separate unticked box, share a sample issue and invite readers to forward it. Do not buy lists. See how to build an email list and why not to buy one.

How to keep your newsletter out of spam

  • Send only to people who asked for it.
  • Authenticate your domain and keep your list clean. See email validation.
  • Make unsubscribing easy and honour it quickly. See one-click unsubscribe.
  • Keep the content consistent with the promise.
  • Keep the sending rhythm steady.
  • Watch complaints and bounces, and remove people who never engage.

How to measure a newsletter

Look at clicks, replies, unsubscribes, complaints and bounces, together with the goals you set at the start: sign-ups, sales, bookings or readers returning to your site. Open rate is a weak guide because mail privacy features inflate it; see email open rate. Compare issues against your own history, and change one thing at a time.

Common newsletter mistakes

  • No clear promise, so the content wanders.
  • Starting at too high a frequency and giving up after a month.
  • Sending to people who never asked.
  • No reply address.
  • Cramming in everything instead of choosing one main item.
  • Forgetting the unsubscribe link or hiding it.

Send your newsletter from your own domain Authenticate your domain, validate subscribers and track every issue.

Get started

References and further reading

Frequently asked questions

What is an email newsletter?

A recurring email sent to subscribers who chose to receive it, with news, articles, tips or updates on a predictable schedule.

How do I start an email newsletter?

Define the purpose and audience, choose a name and sender, pick a sending platform, authenticate your domain, add a sign-up form and welcome email, plan ten issues, choose a schedule, design a simple template and test before sending.

What should an email newsletter include?

A clear subject line, a short header, an opening, a main item, a few secondary items, one call to action, a sign-off and a footer with an unsubscribe link.

How often should I send a newsletter?

Weekly, fortnightly or monthly are common. Choose a rhythm you can keep for months, and tell subscribers what to expect.

Can I send a newsletter from Gmail or Outlook?

For a handful of known contacts maybe, but ordinary mailboxes limit recipients and lack unsubscribe handling and reporting. Use a sending platform for a real list.

Topics#email newsletter#newsletter format#content ideas#list growth#subscribers#deliverability#schedule
Was this guide helpful?Your answer helps us improve our documentation.

Start sending in minutes.

Create an account, add your domain and send your first email.

Get started Talk to sales