How to Write Effective Email Subject Lines for Sales Prospecting 

So, you’ve decided to use cold email outreach as part of your prospecting strategy, and you’ve made a terrific decision! Cold phoning each prospect is far more inconvenient and ineffective than sending an email. It’s less intrusive, and your receivers can read and open the email whenever they want. Your potential consumer can reject the offer in seconds or accept it if they are intrigued. 

Email sales templates and automation make it simple to personalize and send emails. On the other hand, your subject lines will not be opened if they are not attractive. Writing good email subject lines for sales prospecting is crucial; 47% of receivers decide whether or not to read emails based on the subject line. Worse, 69 percent of people automatically send emails with those subject lines to their spam bin. 

Fortunately, generating excellent email subject lines for sales prospecting is a skill that can be learned quickly. You’ll be off to a good start if you employ these tips, tactics, and examples that experienced professionals have used to construct their subject lines. Let’s get this party started. 

Make the Reader Curious 

Think about the emails you open. Would you open an email if the subject line didn’t pique your curiosity? Probably not. One way to write a cold email to interest prospects is to give them a little teaser of what’s to come. A simple question can go a long way. They’ll want to open the email to find out more. 

Example: “Question about [goal]” 

Source: HubSpot 

Address Their Pain Points 

Address the prospect’s pain points right out of the gate. This is a very effective technique for getting potential customers to open your email. You don’t even need to get too specific for your industry, but you might see better results if you do. It’s usually not too difficult to make an educated guess after conducting research. What are the major professional problems most of your prospects are dealing with? 

Example: “Disengaged customers?” 

Source: Close 

Mention a Shared Contact 

If appropriate, always mention a mutual connection. It could be someone that went to the same school, a mutual acquaintance, or even someone in the same LinkedIn group. or any kind of common ground, and including it in your subject line can increase your open rates. 

Example: “Joe Smith suggested I reach out” 

Source: Timetoreply 

Personalized Subject Lines 

By personalizing your email subject lines for sales prospecting, you can increase your open rates by 5%. That might not seem like much, but it’s certainly worth the extra effort. 

By adding some human touch to your subject lines, you’ll look much less spammy to your prospects. For better results, try to add something beyond just their name. 

Example: “Hey, [name], I loved your blog post on [website name]” 

Source: RingCentral 

Keep it Short and Concise 

We all have a finite amount of time to get work done during our day. The last thing any of us want to do is spend too much time reading emails from strangers. By keeping your subject lines short, your recipients can read more of the message preview, which means they’ll also see the first sentence of your email before opening it. So you’ll want to ensure that your first sentence is just as impactful as your subject line. 

Example: “Time to meet?” 

Source: Outreach 

Make the Email About Them 

This isn’t the time to introduce yourself, your company, or your offering. Sales prospecting emails are all about them. What value do you add? What’s the benefit of opening your email? Put yourself in their shoes. Include resources, helpful tips, or materials that can help them solve a problem. 

This isn’t the time to be too sales-oriented. Save that for your call to action. Your subject line is all about building rapport and connecting with the recipient. 

Example: “Can I help you reach [specific goal/result]?” 

Source: Pipedrive 

Research Your Prospect 

Target your recipients’ interests for better results. Read their website and LinkedIn profiles to find out more about them. People appreciate when someone has put forth the effort to get to know them before reaching out. It shows how much you care. And if you can’t find their email, use an email lookup tool that allows you to find business emails based on the company website. 

Example: “Julia, Increase Your SE Rankings Today!” 

Source: EasyMail7 

Test Email Subject Lines 

Test which email subject lines for sales prospecting work best. That way you can scale your prospecting campaigns and determine what works for your industry and offering. 

Through A/B testing, you can create multiple versions of the same email, just with different subject lines. You can test these emails on different audiences to see which emails got higher open rates. This way, you can take some of the guesswork out of sales prospecting

“While every company’s email program is different, you should at least include testing in your campaigns regularly, if not in every campaign. Determine what works best for your company and marketing program and stick to it.” 

- Tom Wozniak, Forbes Councils Member and Head of Marketing at OPTIZMO 

Keep a Clean Email List 

If emails are consistently bouncing or not getting opened, you should remove them from your cold email outreach list. If you keep sending to those email addresses, you could damage the deliverability with your other recipients. 

It’s also wise to segment your prospecting recipients into different industries, titles, interests, or topics. Segmentation makes it easier to personalize emails and send highly relevant information using cold email tool
Just remember that the perfect email subject lines for sales prospecting won’t help you get responses unless you do the right research beforehand. Part of this research is finding email addresses that are linked to a prospect. 

For example, an email lookup tool helps you find real email addresses for professionals at any company. Whether it’s through LinkedIn, a company’s website, or using our in-app features, we help you build accurate email lead lists for your next email campaign. 


A persuasive sales email subject line is only as good as the email addresses you’re sending it to. If they aren’t active or verified email addresses, then no one will receive them on the other end. To ensure the email addresses you’re gathering are legit, try using an email lookup tool.

With a free email lookup tool, you can find the right contact information you need to start your next sales campaign today!

About the Author

Kashyap Trivedi

Kashyap Trivedi is a Digital Marketing Executive at PSDCenter. He likes to challenge himself, so he can learn & unlearn things on a daily basis. In the free time, you’ll find him doing research on Psychology or Spirituality.

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