10 Subject Lines Guaranteed to Get Your Cold Email Opened

by Vinny Hassan in July 14th, 2022
cover image email in laptop

If you're like most people, you probably dread writing cold emails. You know they're important, but coming up with the perfect subject line that will open your email — and not immediately sent to the trash — seems impossible.

Never fear! We've compiled a list of 10 surefire subject lines guaranteed to pique your recipient's interests and persuade them to open your email. So without further ado, let's get started.

1. Have you seen our [trial/demo/product]?

If you're looking for an awesome way to open your cold email, try using "Have you seen our [trial/demo/product]?" as your subject line. Chances are, your recipient will be intrigued enough to click through and see what you're offering. And if your trial or demo is precious, you'll have a good shot at converting them into paying customers.

Of course, your offer needs to be relevant to your recipient, and it needs to be something that they would actually want to use. But if you can find the right balance, using "Have you seen our [trial/demo/product]?" as your subject line is a great way to increase the chances of getting your cold email opened.

2. Check out our [case study/blog post/white paper] on [industry topic]

The next time you write a cold email, try using a subject line that includes a call to action. For example, "Check out our case study on the benefits of [industry topic]." This subject line will likely grab your recipient's attention and encourage them to open the email.

Once they're reading, you'll have a chance to deliver your message and increase the likelihood of getting a response.

grey and black metal tool

Image source

3. Introducing: [new product/feature]

One way to increase the chances that your email will be opened is to use an attention-grabbing subject line. "Introducing: [new product/feature]" is an excellent option for a subject line because it immediately piques the reader's interest.

By letting the reader know there's something new to check out, you increase the chances they'll open your email.

4. Here's what we can do for you...

This not only tells the recipient what they can expect from the email but also implies that there is something in it for them. As a result, they are more likely to open the email and give it a chance.

Of course, the contents of the email must deliver on the promise of the subject line, but a well-crafted message can be just the thing to get your foot in the door with a potential customer.

5. Remember when you said you were interested in [topic]?

Another surefire way to get your cold email opened is using the subject line "Remember when you said you were interested in [topic]?" This simple but effective technique works by reminding the recipient of a previous conversation or interaction in which they expressed interest in the topic at hand.

By reminding them of their past interest, you increase the chances that they'll be intrigued enough to open your email and see what you have to say. So if you're hoping to make a connection with someone through cold email, don't be afraid to use this tried-and-true subject line.

6. Can we help you with your [problem]?

While there are a lot of different strategies you can use to write a great subject line, one of the simplest and most effective is to start with a question. For example, if you're trying to sell software that helps businesses streamline their operations, you could use a subject line like "Can we help you with your business efficiency?"

By starting with a question, you immediately show that you understand your recipient's needs and that you have something valuable to offer. As a result, your email is more likely to be opened, and your message is more likely to be heard. So next time you're drafting a cold email, remember to start with a question. It could be just what you need to get your foot in the door.

two hands

Image source

7. I'm following up about our conversation at [event]

If you're following up with someone after meeting them at an event, make sure to reference the event in your subject line. This will help to jog their memory and remind them who you are. For example, you might say something like, "I'm following up on our conversation at the XYZ conference."

Personalizing your message this way makes you more likely to get your email opened and read. And that's the first step to making a lasting impression and furthering your relationship with this vital contact.

One way to increase your chances of success is to use a mutual connection in your subject line. This simple tactic can be highly effective, as it immediately signals that you have a shared connection.

Furthermore, it hints at the possibility of a beneficial relationship, likely to pique the recipient's interest. So next time you're struggling to get your cold email opened, remember to tap into your network. A mutual connection might be the key to success.

9. We're excited to announce...

If you're looking for a way to open your cold email, try using the subject line "We're excited to announce..." This simple phrase communicates enthusiasm and immediately piques the reader's interest. Of course, making sure your email lives up to the subject line's promise is essential.

However, if you have something fascinating to share, this is a great way to ensure your message gets read.

10.[celebrity endorsement] uses our product - and so can you! 

Finally, another effective strategy is to use a celebrity endorsement. Something like "Tom Cruise uses our product - and so can you!" will likely grab attention and encourage people to click through.

Of course, you'll want to ensure that your celebrity endorsement is relevant to your product and that you have permission to use their image. But if you can get those details sorted, a celebrity endorsement can be a great way to make your cold email stand out from the crowd.


So there you have it—10 cold email subject lines sure to increase your open rates and get your foot in the door with prospective customers. Just remember to keep your content relevant and helpful, and you'll be well on your way to building meaningful business relationships.

Your cart

We value your privacy

We use cookies to customize your browsing experience, serve personalized ads or content, and analyze traffic to our site.