How to Use Testimonials in Email Marketing (+ 7 Copy-Paste Templates)

Published March 18, 2026 · 12 min read

Your emails are competing with 121 others in your subscriber's inbox every day. The ones that convert? They use social proof. Specifically, customer testimonials.

Adding testimonials to your marketing emails isn't a nice-to-have — it's one of the highest-ROI changes you can make to your email strategy. Here's exactly how to do it, with templates you can steal today.

Why Testimonials Work in Emails

Email marketing has a trust problem. People know you're selling to them. That's why the average marketing email gets a 2.6% click-through rate — most readers are skeptical.

Testimonials flip the script. Instead of you saying "our product is great," a customer says it. That's fundamentally different. It triggers what psychologists call social proof bias — we trust peer experiences more than brand claims.

Here's what changes when you add testimonials to your emails:

• Click-through rates increase 15-30% — because testimonials reduce the perceived risk of clicking
• Unsubscribe rates drop — testimonial-rich emails feel less "salesy"
• Reply rates go up — social proof creates curiosity and engagement
• Forward rates increase — people share emails that contain relatable stories

5 Ways to Use Testimonials in Your Emails

1 The Hero Testimonial

Open your email with a powerful customer quote. This immediately establishes credibility before you make any claims. Works best for launch emails, product announcements, and sales campaigns.

"We switched to [Product] three months ago and our conversion rate jumped 40%. Best decision we made this year." — Sarah K., Marketing Director at Acme

Then follow with your CTA. The testimonial does the selling for you.

2 The Pre-CTA Social Proof Block

Place 2-3 short testimonials right before your call-to-action button. This catches people at the moment of decision — when they're most likely to hesitate. Think of it as a last-second trust injection.

3 The Case Study Teaser

Summarize a customer's result in 2-3 sentences and link to the full story. This works beautifully in nurture sequences and weekly newsletters. You're not just sharing a quote — you're telling a story.

4 The P.S. Testimonial

The P.S. is the second-most-read part of any email (after the subject line). Add a testimonial there for people who skim straight to the bottom. Quick, low-effort, surprisingly effective.

5 The Social Proof Subject Line

Use a testimonial as your subject line. Examples:

• "This tool saved us 10 hours a week" — Jamie, Founder
• ★★★★★ "Why didn't I find this sooner?"
• "Best $19/mo I spend on my business"

These outperform generic subject lines because they feel authentic and create curiosity.

7 Email Templates with Testimonials

Copy, customize, and send. Each template shows you exactly where to place the testimonial for maximum impact.

Best Practices for Email Testimonials

Always include attribution

A testimonial without a name is just a claim. Include the customer's full name, role, and company whenever possible. Photos increase trust even further — but aren't necessary in email where image loading is unreliable.

Match the testimonial to the email's goal

Selling a feature? Use a testimonial about that feature. Overcoming pricing objections? Use a testimonial about ROI. Relevance beats star count every time.

Keep quotes short

In email, less is more. Aim for 1-2 sentences max. If you have a longer testimonial, pull the best line. You can always link to the full review.

Use star ratings visually

★★★★★ catches the eye during a quick scroll. Even in plain-text emails, Unicode stars work as a visual anchor that draws attention to the testimonial.

Rotate your testimonials

Don't use the same quote in every email. Build a library of testimonials and match them to different segments, campaigns, and objections. A tool like Praised makes it easy to collect and organize dozens of testimonials you can pull from.

A/B test testimonial placement

Test testimonials in the hero vs. pre-CTA vs. P.S. positions. The results will vary by audience. Let data tell you what works — don't assume.

How to Build Your Testimonial Library

You can't use testimonials in emails if you don't have any. Here's a quick system:

1. Create a collection form — Use Praised to set up a branded testimonial form in under 2 minutes. No code needed.
2. Ask at the right moment — Send your collection link after a positive interaction: project completion, support resolution, milestone achievement, or renewal.
3. Make it easy — Praised's forms are optimized for completion. Customers fill in their name, role, rating, and a quote. Done in 30 seconds.
4. Organize by theme — Tag testimonials by use case, feature, or objection they address. This makes it easy to grab the right one for each email.
5. Keep collecting — Set up automated collection flows. The more testimonials you have, the more targeted your email social proof becomes.

About Praised: Praised is a testimonial collection and showcase tool for SaaS companies, agencies, and freelancers. Collect customer love, display it beautifully, and use it everywhere — your website, emails, and social media. Start free →