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Newsletter templates

With an average return of $36 for every $1 spent (Litmus, 2024) and a median open rate of 42 % (HubSpot, 2025), newsletters remain the most profitable channel for nurturing and selling. This step-by-step guide covers strategy, design and optimisation so every edition drives maximum clicks and revenue.

9 Stunning Mockups of Newsletter templates template

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What is a newsletter?

It’s a periodic email sent to an opt-in audience that blends information and promotion; its goal is to nurture the relationship, educate, and convert through high-value content.

Why invest in a newsletter

Record ROI:

Email marketing returns $36 for every $1 invested (Litmus, 2024).

Direct visibility:

A median open rate of 42 % in 2025, even after iOS Mail Privacy (HubSpot, 2025).

Full control:

Unlike social platforms, your list belongs to you—no unpredictable algorithm.

Qualified clicks:

Newsletters achieve a CTOR of 10–25 % (Salesforce), far above organic posts.

How to do it in 5 easy steps

  1. 1

    Set the goal: Sales, traffic, retention? Pick one primary KPI before you write.

  2. 2

    Segment the list: Persona-relevant content drives +28 % more clicks.

  3. 3

    Structure the content: Hook, value, proof, CTA. Keep key blocks above the fold.

  4. 4

    Responsive design: 81 % of opens happen on mobile; aim for 600 px width and 16 px minimum text.

  5. 5

    Test & optimise: A/B the subject, visuals and CTA. Track opens, clicks and conversions.

Best Practices

1. Advanced segmentation

Target behaviour-based segments (clicks, purchases) instead of static lists.

What's good: Hyper-segmented campaigns generate **760 %** more revenue (Campaign Monitor).

Tip: Start simple: new sign-ups vs active customers vs lapsed customers.

2. Storytelling + social proof

Tell a story and slip in testimonials to boost credibility.

What's good: Adding two testimonials lifted clicks by **19 %** in an internal SaaS test.

Tip: Use the ‘Problem → Solution → Result’ structure in 150 words max.

3. Clean, accessible design

Prioritise readability: AA contrast, sans-serif fonts, large buttons.

What's good: Accessible templates cut ‘spam’ complaints by **14 %** (Litmus Accessibility Audit 2024).

Tip: Stick to three main colours and one GIF ≤ 1 MB.

4. Rhythm and consistency

Send at a fixed time (e.g. Tuesday 10 a.m.); avoid cadence roller-coasters.

What's good: Stable weekly sends keep unsubscribes below **0.2 %** (MailerLite, 2025).

Tip: Pre-plan a four-week editorial calendar.

6 High-Converting Welcome Email Subject Lines

  • 🚀 This week’s tips & news from {{company}}
  • Your marketing inspo dose – Issue #{{issue}}
  • Behind the scenes at {{company}}: projects revealed
  • 3 exclusive resources to grow your business
  • The Friday recap that really matters
  • Don’t miss the premium edition – limited spots

Frequently asked questions

What frequency should I choose?

Weekly is the sweet spot—frequent enough to stay top-of-mind without overflowing the inbox.

How many words make an effective newsletter?

Aim for 200–500 words; beyond that, add a ‘read more’ link to your blog.

Do image sizes still matter?

Yes—keep total weight under 2 MB to avoid Gmail clipping and speed up mobile load times.

How do I stay GDPR-compliant?

Collect explicit consent, offer a one-click unsubscribe link and honour the right to erasure.

Subject line or pre-header: which really matters?

The pre-header influences up to 24 % of opens. Treat it like a second hook.

Which metric should I track: open, click or conversion?

Since Apple masks opens, prioritise click-through rate and final conversion in your CRM.

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