Email Marketing

Standout Testimonial Email Examples and Subject Lines

8 minutes

Standout Testimonial Email Examples and Subject Lines

According to statistics, 84% of clients trust online reviews and testimonials as much as they would trust personal recommendations of people they know. This is why companies use testimonials to increase their sales and establish a strong online presence.

Testimonial emails contain CTA buttons and information about lucrative deals and generous offers, which makes them so engaging. Read on to find out how to create an effective testimonial email to prompt your potential clients to purchase.

What are testimonial emails?

A testimonial email is a message sent to a long-term client or potential buyer containing testimonials or reviews left by other customers after purchasing products or ordering services. Such short reviews typically contain information about the main advantages of a product and positive impressions about a company.

testimonials in emails
Add testimonials to your emails to remind people of how great your products are

Testimonials are used when a company needs to:

  • promote new products and services;
  • tell about new offers and deals;
  • drive clients to explore a website and place an order.

Companies use testimonial emails when they want to improve their online presence, build their reputation, and engage potential buyers. By using customer testimonials, a company can demonstrate that it sells high-quality products.

Key advantages of testimonial emails for businesses

If you want to make your marketing efforts more effective, you can’t do without using customer testimonials. They are a must for every professional who wants to set up a successful newsletter.

Customer trust

To establish close relationships with your clients, you need to demonstrate that they can trust your company. Using testimonials left by happy clients, you can show that your products and services help people solve specific problems and have great value for the money.

Tailored messages

Adding testimonials to your emails will make them sound warmer and more welcoming. Moreover, a testimonial email containing the reviewer’s personal data and the product your email recipient has recently been browsing on your site will make your message more personalized and relevant to the recipient. It can also help you create a sense of social proof.

High conversions

Make sure to use testimonial emails if you want to increase your conversions. They will provide your customers with relevant information that will drive them to purchase. When writing reviews, customers often mention the key selling points of your products.

Curious about the ways to ask for reviews? Check our post on collecting customer feedback.

Testimonial email design and copywriting tips

Using testimonials left by your clients can make your message sound more trustworthy. Leverage the tips below to write engaging testimonial emails:

  1. Select an eye-catching headline. Your main message should instantly grab the attention of a recipient.
  2. Add unique design elements and high-quality photos. Your email should be visually pleasing to drive people to click on it.
  3. Mention the key benefits of your product. Show what makes your product different from other offers on the market.
  4. Customize templates. Bring your point across by making your message more tailored to the needs of your audience.
  5. Use quotes, numbers, and emoji. These elements will help you sound friendly, trustworthy, and informative.
  6. Add one or several call to action buttons. CTA buttons are perfect for upselling products and driving customers to purchase.

Using these tips, you can write testimonial emails that prompt your clients to place an order, read other reviews, and learn about the best deals.

Tips for writing testimonial email subject lines

The main purpose of testimonial email subject lines is to catch the person’s attention and make them open the email to review your offer. Depending on the subject line, you may focus on the specific experiences of your clients and add testimonials that add truth to your claims.

Ideally, a subject line should be up to 50 characters long. For instance, you may use them to promote new releases, boost your sales, or improve your online presence.

This is why it’s important to select an attention-grabbing subject line that will instantly engage your customers and drive them to action. Instead of generic phrases like “Find feedback from our clients,” use words that call people to follow a link or perform another action.

You may use the following testimonial email subject lines as a source of inspiration:

  • See why our clients have chosen us and never looked back 💥
  • Don’t just take our word for it…
  • Makeup artist approved!
  • Why pet owners can’t stop raving about our products 🐶
  • See how our product helps people solve real-life problems
  • We can’t stop smiling 🙌
  • Trusted by the world’s best
  • Discover how our product allows people to save money 💸
  • It’s crazy how much love we’ve gotten!
  • Get inspired by the testimonials written by top athletes!
  • The reviews are in…
  • Find out why our clients stay with us for years!
  • Learn about the top reasons to buy our product now ⏰
  • Read about the first-hand experience of using our products!
  • The reaction to our new product has been…

Some testimonials are accompanied by hashtags that allow people to find more product reviews on social media. Alternatively, you can write a subject line as a question to prompt immediate action:

  • Do you want to learn how to use our product to scale up your business?
  • Are you wondering how to make the most out of our product?
  • Do you want to discover how to make your dog happy?

In addition, you can experiment with different messages to see which of them appeals to your target audience. It will help you learn more about its preferences and select the most suitable subject line.

Effective testimonial email examples

Now you know how to design attention-grabbing testimonial emails and write engaging copy for them to demonstrate that you cater to the needs of your target audience. Make sure to emphasize that your clients are delighted with your services and can’t wait to share their experiences.

Adding CTA buttons and offering discounts to your clients can generate extra interest and ensure that recipients will consider your testimonial email useful. Read on to find out the best testimonial email examples you can use for inspiration.


If you want to sound friendly and approachable, keep your email short and send a friendly reminder saying that your potential clients may want to take a look at the reviews taken by your loyal customers.

Make sure not to overdo it when adding positive reviews, as nobody is interested in false praise. Instead, use reviews from real people who love your products and services.

testimonial email example
A testimonial email example from Pulp&Press; source: Really Good Emails


This testimonial email is so effective because it makes a “No Bullshit” promise right from the start, as if promising that it will provide only relevant information and reviews from trusted sources. The main message is expressed via graphic design elements, with testimonials adding extra value to the claim that the company’s products are worth every penny.

testimonial email example
Excerpt of a testimonial email example from Ritual; source: Really Good Emails

Another advantage of this testimonial email is that it includes links to reviews, product listings, the FAQ section, a page containing information about ingredients, and a section with further reading tips. The disclaimer at the end demonstrates that the company is fully open with its clients and doesn’t sell products under false claims.

testimonial email example
Excerpt of a testimonial email example from Ritual


This testimonial email contains a targeted message that will appeal to fans of a sustainable way of life looking for waste-free products. Besides traditional customer reviews, it includes excerpts from popular publishers like Cosmopolitan, PureWow, and HealthLine, adding extra weight to the claim that these toothpaste tablets are indeed innovative.

testimonial email example
Excerpt of a testimonial email example from Bite; source: Really Good Emails

Besides the CTA button and a generous 5% discount offer at the end, you can see a link to the company’s Instagram account and a ready-made hashtag for finding other testimonials.

testimonial email
Excerpt of a testimonial email example from Bite

Fetching Fields

This is another easy-to-implement testimonial email example for small businesses. It has been designed by Fetching Fields, which specializes in canine wellness treats. Unlike other examples, it shares the story of one customer and her pet, encouraging other clients to share their experiences using a suggested hashtag. By adding a testimonial written by an owner of a creative agency, the company added a personalized touch to this email, thus making it more convincing.

testimonial email example
A testimonial email example from Fetching Fields; source: Really Good Emails

By adding pictures of a dog with its owner, the company has managed to emotionally appeal to its target audience.

Eight Sleep

This testimonial email stands out from the rest because it uses reviews written by athletes and fitness professionals. It allows the company to send a targeted message. In addition, this email lists some free perks a client will receive after placing an order.

testimonial email example
A testimonial email example from Eight Sleep; source: Really Good Emails

Besides links to social media pages, this email also contains information for clients to learn more about pricing details. While the “Start Your Journey” CTA button may seem too generic, it still does its job.


The testimonial email sent by Bose contains plenty of information about products sold with generous discounts. It lists the best offers accompanied by customer reviews.

testimonial email example
Excerpt of a testimonial email example from Bose; source: Really Good Emails

The email stands out for its well-thought-out design with high-quality product photos and ends with a CTA button offering to browse other deals. As it was sent before Black Friday, it promised 50% discounts.

testimonial email example
Excerpt of a testimonial email example from Bose


We love this testimonial email as it is written in a funny and charming way. Instead of using boring phrases to remind a customer about an abandoned cart, the marketing professionals working for Casper added the “Come back to bed” phrase that can be used for various products aimed at improving sleep quality.

testimonial email
A testimonial email example from Casper; source: Really Good Emails

What strikes us as curious here is that the marketing team used only one review to keep the email short. However, they added a button encouraging potential buyers to read other reviews.

Revolution Tea

At the first glance, it’s quite a typical testimonial email sent by a small company. However, it promises to provide information about the results of the survey sent to other clients and offers a 10% discount.

testimonial email example
A testimonial email example from Revolution Tea; source: Really Good Emails

While most reviews in this email are rather standard, a 10% coupon might prove to be a great incentive for converting your leads to sales.

Final thoughts

Using the testimonial email examples above as your inspiration, you can design and write awesome messages that will drive your potential customers to purchase. Make sure to combine detailed customer reviews with generous offers, and add CTA buttons with powerful messages to convert more leads.

Well-optimized and automated email marketing campaigns can significantly boost the efficiency of your promotional efforts. Thus, make sure to try the SendPulse email service to streamline all the email routines.

Date of publication:

28 Feb. 2023

Olha Zubarieva

Olha is a content marketer passionate about technology and how it transforms our daily routine. She's also into traveling and...

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