140+ Review Request Email Subject Lines (That Work!)

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Updated: May 13th, 2021

If you're looking to boost your email open rates and increase sales, your email subject line is the first (and most important) step in achieving those goals.

Did you know that 33% of email recipients open emails because of an engaging subject line?

That's why it's critical to craft a catchy email subject line that will get you the traffic and conversions you deserve.

We've put together a list of 140+ review request email subject lines (that work!).

Some are proven examples from other successful campaigns, and some are creative ideas to inspire you.

Creative Email Subject Line Ideas

Hmmm….What is this?
Dear John, please provide your testimonial
{Customer name}, thank you from the bottom of our hearts
How was your [instert product category here]?
Earn [reward] when you leave a review today
Get it before it is gone
Our customers aren’t good… [In body of email: They’re the best. Then explain why]
Last chance to get up to 50 percent off.
You win by not providing your feedback
{Customer name} you’re amazing! Here’s what you did for us.
We are waiting for your valuable feedback
Code inside. You made the cut for 50 percent off on everything
What do you think about us?
They said: “{Quote from a positive review.}” Do you agree?
{Customer name}, why on earth would you do that?
Thanks for your order! Here’s a link to leave a review
{Customer name}, you know something others don’t. You know…
{Customer name}, who do you think you are? [In body of email: You’re a [rockstar], that’s who]
Follow this link to record your feedback
Are you looking for this?
{Customer name}, what can we do to earn a review from you?
{Customer name}, what if we decided to add this to our {service}?
RSVP: will you be coming to this open house?
{Customer name}, you’re an {attribute}. What do you think about…?
It’s time to get your reviews on our product or service
What is in this mail that you must write about
Only we need your testimonial
{Customer name}, my [mother/father/wife/husband/other] cried when she saw your email
{Customer name}, this means so much to [me] thank you so much
Get inspiration for your holidays. Review us
{Customer name}, no one likes jerks but you? You’re a… [In body of email: You’re an incredible customer, etc.]
The fashionable clothes that everyone wants
{Customer name}, {reviewer name} says you want this. Are they right?
Break these 5 rules of testimonials.
Only 9 tickets left for you
{Customer name}, you’re our most knowledgeable customer. Are they right?
“I’d give them zero stars if I could.”
A quick way to think you from ( name of the company)
You’re our [biggest] customer. Is this wrong?
{Customer name}, {reviewer name} says you should avoid us at all costs!
[First name], what do you think about [product name]?
Only 10 seats left. Will you get yours?
We are offering 3 month subscription absolutely free.
Thanks for your purchase. How was our service?
Really great. We are waiting for your feedback
So {Customer name}, {negative reviewer} says we need {xyz}. Do you agree?
Urgent: {Customer name}, we’re in trouble, and we need your help…
You have to see what in this mail
{Customer name}, is it a mistake to add this to our {service}?
Hi Heena, time is running out.
You’re one of our [first] customers. What do you think?
{Customer name}, would this make our {service} better for you?
10 things you should know about indirect mails
{Customer name}, you’re not really likable, are you? [In body of email: They’re loveable. Then explain why]
[Customer Name], thank you…
Good news inside only for you.
Are you still deciding?
{Customer name}, would you work with us again?
“You’re nothing but a dirty scammer…”
{Customer name}, you couldn’t even say thank you
{Customer name}, you’ve always been the best at…
Did you know?
Urgent: {Customer name}, we’re being attacked. Can you help us fight back?
Choose or lose. Please fill our form
Your favorite product is all around
We don’t want to stress you out but we want your opinion
“You’re ripping people off.”
Totally impressed
We’re offering [insert incentive] for telling us what you think
Don’t review us
Hey Sheela, you are going to love these new features.
Click on this link to record a video
{Customer name}, Did we earn your trust?
“I have mixed feelings about this place.”
Gifts for everyone in your list
Tell us what you thought about [product name]
{Customer name}, you’re part of an elite group…
2 days left! Get up to 99 percent off on reviewing us
What do you think about the subtle changes to our {product}?
Would you like to have a free spa day?
{Customer name}, what do you think we should change about {service}?
You just killed it!
You know us better than anyone else. What do you think?
“This is the worst I’ve ever had in my life!”
Don’t just believe but express your emotions
{Customer name}, {negative reviewer name} said some really nasty things about us…
Hey {Customer name}, are you willing to be radically honest with us?
{Customer name}, he thinks you don’t know what you’re talking about…
Its high time to get personal, Reeta
Free bag of treats
Help needed ASAP: {Customer name}, it’s horrible. They’re accusing us of…
{Customer name}, thank you so much for…
Did you like [product name]?
Meet with us and write your experience shopping with us.
Why we are India’s No 1 print news source?
Please tell your experience. Free 365 days shipping
{Customer name}, is this really what you stand for? [In body of email: You’re all about fairness, kindness, etc.]
{Customer name}, do you disagree with {negative reviewer name}?
Take 2 seconds to tell us how we did, [first name]!
{Customer name}, what should we fix/keep doing?
Absolute must have in your wardrobe
Hey, only 4 hours left
We want to see something special
Last chance to save big.
Your dream vacation rental could gone tomorrow
{Customer name}, you’re a know-it-all… and we love that about you
Long Monday? Check out this to help you express your views
Don’t miss out this opportunity to provide your feedback.
{Customer name}, you’re in the top 2%. One of our best customers and…
{Customer name} they said we {Lied}. We didn’t. We need your help ASAP.
6 promotional products perfect for your next review
“It’s almost impossible to reach you.”
Limited edition: Please provide your feedback.
Weekend is almost over but free shipping only for you
Tell us about your experience and get [inventive]
{Customer name} can you help? {Negative reviewer name} accused us of…
Please don’t say goodbye
Today is the last day
Party is almost over but we are waiting for you
Customers cannot get enough things
Seema Mahajan, What is your favorite Pizza?
{Customer name}, you’ll have our gratitude forever
“They’re not bad, but they’re not good either.”
Hi {Customer name}, can we ask you {#} questions? Takes {#} min.
Don’t wait extra. Up to 60 percent off on new arrivals.
They said: “{Quote from a negative review.}” Are they right?
“{Customer name}, the owner of {business} is a horrible person.”
This link is expiring. Please review us
{Customer name}, did you know you’re friends with a liar
{Customer name}, you’re in the top 3%, what do you think?
Your opinion is timeless but the sale is not.
{Customer name}, {negative reviewer name} says this is the worst thing about us…
Too busy to read this email.
{Customer name}, it’s our Last Chance to Fight Back. With your help, we can win.
Is this is the product that you have been waiting for?
{Customer name}, you’re the only one who cared. Thank you
“{Customer name}, I’ve had better than you…”
You deserve a little extra.
5 festivals to inspire your next trip
Here is why Indians choose to drink Coca Cola
Saturday is the last day to review us.
No subject. It is just an email response

GUIDE: How To Write A Great Subject Line

As we mentioned above, crafting a catchy subject line is critical to the performance of your email campaign.

While just a few words may seem like a small piece of your overall message, this is the first impression your audience will have before they decide whether to open your email.

If your subject line isn't engaging or appealing enough, there's a chance it could get buried in your reader's inbox.

Let's go over the proven tips on how to craft a subject line that boosts engagement:

What makes a great subject line?

First, let's discuss the fundamentals of creating a great subject line:

Spark interest and curiosity
A clear and urgent call to action
An offer/intriguing discount
Personalization (this can be done by sending out different versions of emails to subscribers based on their preferences)
Relevance - make sure your subject line covers the current trends and topics within your industry

5 Tips To Crafting a Great Subject Line

Now, let's dive into the specifics of how to create a great subject line for your next campaign:

1. Use a familiar sender name

Although this may seem obvious, it's a piece many marketers miss the ball on.

Your readers want to feel like your email is coming from a human and not a corporation or automated system.

One of the easiest and most effective ways to do this is by changing the sender's name to YOUR name or someone in the company that is well known.

Here's a great example of this from Marketing Examples

Pro Tip

Avoid the "no-reply" sender name at all costs. This makes your email feel unfamiliar, unapproachable, and less personable.

2. Keep your subject short and to the point

If your subject line is too long, it will get cut off, which could impact your reader's chances of opening your email.

The rule of thumb (for both mobile and desktop) is to keep your subject line under 50 characters.

3. Add personal touches to your subject line

If you have access to information about your subscriber (ie. name, location, etc), you can use this to benefit your subject line and catch your readers attention.

It's important not to go overboard here, but adding even the simplest touch such as their name can build trust and rapport.

Here's a great example of a personalized email + offer I received from BarkBox with my dog's name in the subject line:

4. Avoid making any false promises

Your subject line makes a commitment to your reader, so it's important you don't stretch the truth just to simply get more opens and clicks.

In the grand scheme of things, making false promises will end up hurting your open rate as your readers will lose trust in you.

5. Give them a sneak peek of what's inside

Telling your subscriber what is inside helps with open and clicks.

For example, if you're providing your reader with a free guide or e-book, consider making your subject line something along the lines of:

"Your FREE marketing e-book awaits!"

Conclusion

If you want your email campaign to perform well, it all starts with your subject line.

Think about the emails you receive in your inbox and what makes you click vs what gets buried - odds are, the same habits go for your customer.

We hope you enjoyed our guide + list of 140+ review request email subject lines (that work!).

meet the author

Pat Walls

I'm Pat Walls and I created Starter Story - a website dedicated to helping people start businesses. We interview entrepreneurs from around the world about how they started and grew their businesses.

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