You’ve done the hard work: you’ve created a killer B2B email campaign that you know will have your recipients reaching for their wallets, going straight to your website, signing up for your service, or whatever other goal it is you set out to achieve.

Copy is top-notch, the visuals are stunning, and the offer is a no-brainer but…

None of this matters if your recipient never opens an email.

That’s where the unsung hero of B2B email marketing steps in: the subject line.

It’s the gatekeeper, the attention-grabber, the deciding factor between an open or a swift trip to the ‘Deleted Items’ folder.

But fear not, we have the solution to your subject line woes.

In this guide, we’ll explore 17 of the best subject lines for B2B email marketing, handpicked and vetted by experts. With our help, your emails will not only stand out in a crowded inbox but compel your recipients to open, read, and engage.

So sit back, relax, and get ready to transform your B2B email marketing success with the power of irresistible subject lines.

Why do Subject lines Matter?

Picture this: you’re scrolling through your inbox, flooded with emails, and you’ve got mere seconds to decide which ones are worth opening.

Inbox flooded with emails

That’s when the subject line plays a starring role.

It’s the gateway to your content, the first impression that determines whether your message is read or ignored.

A well-crafted subject line is key to getting your email opened, ensuring your hard work doesn’t go to waste.

In the high-stakes world of B2B email marketing, every open count, and a captivating subject line can be the difference between a successful campaign and a lackluster one.

But it’s not just about getting your foot in the door – a compelling subject line also sets the tone for the rest of the email, priming your recipient’s expectations and creating a sense of intrigue.

In a world where attention spans are shorter than ever, a standout subject line is crucial to cut through the noise and make an impact.

And just by looking at these two statistics:

– 47% of email recipients open an email based on the subject line alone
– 69% of emails are marked as spam based solely on the subject line

It’s easy to see why crafting the perfect subject line is so important.

Why Should You Use the Email Subject Lines for Sales?

In the competitive world of B2B sales, getting your email noticed is half the battle.

The best email subject lines for sales are tailored to your target audience, compelling, and relevant.

They grab attention, spark curiosity, and prompt action.

But why stop there?

Let’s dive deeper into the importance of using top-notch subject lines to elevate your sales game.

First and foremost, consider the sheer volume of emails your prospects receive daily.

Your message is competing with countless others vying for their attention.

An irresistible subject line is your golden ticket to standing out amidst the clutter and making a memorable impression.

Next, think about the relationship-building aspect of B2B sales.

Establishing trust and rapport is vital in nurturing leads and fostering long-term business relationships.

A well-thought-out subject line shows that you understand your recipient’s needs and have something valuable to offer. It’s the first step in demonstrating your expertise, credibility, and genuine interest in their success.

Furthermore, the best email subject lines for sales can also help improve your sender’s reputation.

By boosting your open rates, you’re less likely to be flagged as spam, keeping your deliverability rates high and ensuring your emails reach their intended inboxes.

Lastly, let’s not forget about the measurable results.

Investing time in crafting the perfect subject line can significantly impact your open rates, engagement, and, ultimately, conversions.

So, there you have it: a myriad of reasons to focus on honing your subject line skills. By embracing the art of crafting captivating subject lines, you’re positioning yourself and your sales team for greater success in the B2B email marketing arena.

What should you know before you start?

Before diving headfirst into the world of crafting irresistible subject lines, it’s essential to lay some groundwork.

Having a solid foundation will not only make the process smoother but also maximize the effectiveness of your email campaigns.

Here are a few crucial aspects to consider before you start:

Know your Ideal Customer Profile (ICP): To create the best subject lines for b2b email marketing that’ll resonate with your audience, you must first understand who they are. Define your ICP by identifying the key characteristics, pain points, and preferences of your ideal customers.

This knowledge will enable you to craft personalized, relevant, and attention-grabbing subject lines tailored to their needs.

Research your competition: Stay ahead of the game by keeping a close eye on your competitors’ email marketing efforts.

Analyze their subject lines to identify trends, patterns, and tactics that work well within your industry.

This will help you gain insights and inspiration for crafting your own winning subject lines.

Be aware of email deliverability: To ensure your emails land in your recipients’ inboxes rather than their spam folders, familiarize yourself with best practices for email deliverability. Avoid using spam trigger words, excessive punctuation, or all caps in your subject lines, as these can negatively impact your sender’s reputation and deliverability.

Test, test, test: Email marketing is not a one-size-fits-all approach. What works for one audience may not resonate with another. To optimize your subject lines for maximum impact, make A/B testing a regular part of your strategy.

Experiment with different approaches, analyze the results and fine-tune your subject lines accordingly.

With these foundational elements in place, you’ll be well-equipped to craft compelling subject lines that captivate your audience and drive results.

Now, let’s dive into our expert-curated list of the 17 best subject lines for b2b email marketing

Our Curated List of 17 Best Subject Lines

We’ve searched high and low, consulted with experts, and tapped into our creative minds to bring you this collection: 17 best subject lines for b2b email marketing that have proven to be highly successful in the realm of B2B email marketing.

Get ready to be inspired and entertained as we share our honest and funny reactions and insights on these subject line standouts.

This list is your go-to resource for crafting engaging, attention-grabbing subject lines that will make your recipients eager to open and interact with your emails.

Without further ado, let’s delve into the secrets behind these exceptional examples!

Stop paying us!

Ah, the power of reverse psychology!

psychology text b2b subject line

This provocative subject line is sure to make your leads do a double-take, prompting them to open up and discover what’s inside.

It’s bold, unexpected, and breaks through the clutter of standard sales emails.

When used strategically, a subject line like this can catch your recipient off-guard and pique their curiosity, making them wonder what could possibly be so important that you’re telling them to stop paying you.

However, it’s crucial to use this approach sparingly and only when it aligns with your email content, as overusing it may lead to confusion or distrust.

But when executed correctly, this subject line is a testament to the effectiveness of thinking outside the box and taking a risk to grab your recipient’s attention.

I think you’ll be interested in this

The good old “I think you’ll be interested in this” subject line – a classic that never gets old.

It’s like the comfort food of subject lines, reliably hitting the spot and making you feel like the email is just for you.

The key to making this one work is to actually have something interesting inside the email (duh!).

That way, you’re not just teasing your recipients, but actually delivering on the promise of something they’ll find useful or intriguing.

And who knows, maybe they’ll even tell their friends about that amazing email they received from you!

Alright, they probably won’t, but you get the point.

A little birdy told me

This subject line has a certain whimsical charm to it that’s hard to resist.

It’s like a wink and a nudge, inviting your recipient into your secret world of insider knowledge.

While it may sound like something straight out of a fairy tale, this subject line can be surprisingly effective when used in the right context.

Just make sure that the “little birdy” is sharing some genuinely valuable information, or you may find your recipients flocking in the opposite direction.

15 minutes this week?

Short and snappy – just how we like it!

This subject line is a masterclass in creating urgency and making it clear that you mean business. It’s like a timer ticking down, urging your recipients to act now or risk missing out. And the best part?

It shows respect for your leads’ time by suggesting that whatever you have to offer won’t take up too much of their busy schedules.

When done right, this subject line is the email marketing equivalent of a perfectly timed, mic-drop-worthy one-liner.

It’s mainly used for setting up a meeting or demo, but you can also adapt it to other forms of content such as webinars and videos. Regardless, this subject line packs a punch and is sure to get the attention of your recipients.

You’re not going to believe this!

Well, color us intrigued!

This subject line taps into our innate curiosity and promises a shocking revelation.

It’s like a juicy piece of gossip you just can’t wait to uncover.

But be warned, this subject line sets high expectations, and you’d better deliver something truly surprising within the email.

If you can manage that, though, you’ll have your recipients hooked and eagerly waiting for more.

After all, who doesn’t love a good surprise?

I didn’t want to email you about this, but…

This one is like a confession, a reluctant admission that you just couldn’t help but share.

It gives your email a sense of urgency and importance, making your recipient feel like they’re privy to something they shouldn’t be.

It’s a clever way to pique curiosity and make your message feel exclusive.

Just ensure that whatever you’re sharing is genuinely noteworthy and relevant to your audience.

Otherwise, they may feel like you’ve cried wolf, and that’s no way to build trust in a B2B relationship.

(Mutual connection) recommended I get in touch

This subject line is all about leveraging the power of networking.

By name-dropping a mutual connection, you’re instantly establishing trust and credibility. It’s like getting a foot in the door without even having to knock.

Of course, it’s important to ensure that the mutual connection you’re referencing is indeed a real person and that they’ve genuinely recommended you – because nothing sours a relationship faster than a little white lie gone wrong.

Used with integrity, this subject line can be a fantastic way to break the ice and kickstart a fruitful conversation.

Hey, I have leads to send over to you

For a B2B audience, this B2B email subject line is like a siren song – it’s hard to resist the allure of fresh leads.

By offering something valuable right from the get-go, you’re not only grabbing your recipient’s attention but also giving them a reason to open the email and engage with your content.

Just make sure that you actually have leads to share and that they’re relevant to your recipient’s business.

After all, nobody likes to be teased with the promise of leads, only to find an empty inbox.

[Prospect], I thought you might like these article



Offering value?

Double check!

This subject line ticks all the right boxes.

Not only does it address your recipient by name, but it also shows that you’ve done your research and handpicked content that they might find interesting.

It’s like a personalized news digest just for them!

Recipients will be hard-pressed not to open an email that’s tailor-made for their interests.

I forgot to mention…

Wait, what did you forget?

We’re dying to know!

This subject line cleverly taps into the human tendency to hate being left in the dark.

It’s like the email equivalent of a cliffhanger – your recipient can’t help but open it to find out what they’re missing.

Just make sure that what you “forgot” is actually valuable and relevant.

You don’t want your recipients to feel cheated once they open the email, or they might lose faith in your future messages.

Addressing (common pain point): let’s get down to business

No-nonsense and straight to the point, this subject line doesn’t mess around.

It shows that you’re serious about solving your recipient’s problems and that you have a solution worth considering.

This subject line is like a super-focused, results-driven professional ready to tackle any challenge.

Recipients will appreciate the direct approach and may be more likely to engage with your content.

Just be sure to back up your subject line with a strong email that actually addresses the pain point you mentioned – otherwise, your credibility might take a hit.

Every (recipient_job_position) needs this tool

This subject line is like a bold declaration, a rallying cry for everyone in your recipient’s job position.

It’s confident and assertive, making the reader wonder if they’re missing out on something crucial to their success.

FOMO, anyone?

FOMO in B2B email subject lines

But don’t let the bravado fool you – this subject line can work wonders if you have a genuinely valuable tool or resource to share.

Just make sure you can back up your claim, and your recipients will be thanking you for introducing them to their new secret weapon.

The one thing your competitors don’t want you to know

Ooh, juicy industry secrets? Count us in!

This subject line is like the email equivalent of a juicy secret whispered behind closed doors.

It’s tantalizing and mysterious, making your recipients feel like they’re part of an exclusive club with access to insider information.

Who can resist opening an email that promises a competitive edge?

Just make sure the content lives up to the hype, or your recipients might feel like they’ve been duped by a clickbait headline.

You won’t believe what we just found out!

This subject line is like your best friend bursting into the room with some earth-shattering news.

It’s bursting with excitement and curiosity, making it almost impossible for your recipients not to open it.

The trick here is to deliver on that curiosity with genuinely interesting or surprising content.

Don’t leave your recipients feeling like they’ve been lured in with false promises – give them the juicy details they crave!

Behind the scenes: (Client)’s road to success

Everyone loves a backstage pass, and this subject line offers just that – an exclusive, intimate glimpse into your client’s journey to success.

By sharing the ups and downs, the challenges and triumphs, you’re not only humanizing their business but also fostering a deeper connection with your recipients.

They’ll feel like they’re part of a select group privy to your client’s inner workings.

Just be sure to provide a compelling narrative and valuable insights to keep them hooked and coming back for more.

This subject line is particularly effective when used to highlight a successful partnership or case study, emphasizing the positive impact your services have had on your client’s business.

Tackling (specific challenge): the foolproof method

When your recipients are grappling with a challenge, they’re on the lookout for a solution they can trust.

This subject line swoops in like a superhero, promising a foolproof method to conquer their biggest obstacles.

Superhero for subject lines for b2b email marketing

It immediately catches their attention and instills a sense of hope and confidence.

However, it’s essential to back up your bold claim with a well-researched, actionable strategy that genuinely delivers results.

If you can provide that, you’ll not only solve their problem but also establish yourself as a trusted source of industry knowledge and expertise.

We’ve been missing you, (Name)!

A little bit of flattery never hurt anyone, right?

This personalized subject line tugs at your recipient’s heartstrings, making them feel valued and missed.

It’s like a warm, virtual hug that invites them to reconnect and rekindle their relationship with your business.

Use this subject line when targeting inactive leads or customers who have been dormant for a while.

It’s crucial, however, to follow up on this emotional appeal with an enticing offer or valuable content that shows you’re genuinely interested in their well-being and success.

7 Best Practices for B2B Email Subject Lines

If you thought we’d leave you hanging after serving up those juicy examples, think again!

We’re about to dive into the crucial step that’ll make your B2B email marketing campaigns even more unstoppable: 7 best practices for crafting email subject lines that truly shine.

Get ready, because we’re not only going to arm you with inspiration, but we’ll also empower you with practical, actionable tips that can make all the difference in your open rates, engagement, and conversions.

By mastering these best practices, you’ll unlock the full potential of your email subject lines, and your recipients won’t be able to resist clicking on your messages.

Don’t just settle for average subject lines when you can create sensational ones that stand out in even the most crowded inboxes.

It’s time to elevate your email marketing game and craft subject lines that leave your audience eagerly awaiting your next message!

So grab a notepad, take some notes, and let’s dive headfirst into these proven strategies to skyrocket your email success.

1. Personalize for a Human Connection

In today’s world, personalization is the key to standing out from the crowd and making a lasting impression.

Gone are the days of generic, one-size-fits-all messaging.

Your recipients crave a connection that feels genuine and tailored to their needs.

That’s where personalization in your email subject lines comes in, transforming your emails from just another message in their inbox to something that speaks directly to them.

By using your recipient’s name, referencing a mutual connection, or even mentioning a shared interest, you can instantly pique their curiosity and create a sense of familiarity.

It’s all about making them feel seen and understood like you’ve taken the time to get to know them and address their specific concerns or interests.

This approach fosters a sense of trust and rapport that’s crucial for building long-lasting relationships with your leads and customers.

And don’t worry, personalizing your subject lines doesn’t have to be time-consuming or complex.

With the help of marketing automation tools and CRM data, you can easily tailor your subject lines to resonate with each recipient on a personal level.

But remember, as with any marketing tactic, it’s important to strike a balance between personalization and privacy.

Be thoughtful about the information you use, and never overstep the boundaries of what’s appropriate or comfortable for your audience.

2. Keep your B2B Email Subject Lines Short and Sweet

With the average person receiving dozens, if not hundreds, of emails daily, it’s essential to make every word count.

Short, punchy subject lines are more likely to grab your recipient’s attention and entice them to open your email, whereas long, convoluted ones may get lost in the shuffle or even truncated by email clients.

Aim for subject lines that convey your message concisely and with impact, while still sparking intrigue and curiosity.

Ideally, your subject lines should be between 6 to 10 words long, as these have been proven to have the highest open rates.

Remember that many recipients will be checking their emails on mobile devices, where screen space is limited, so keeping your subject lines short and sweet will ensure they can be easily read and understood on any device.

When crafting your subject lines, focus on the most important and compelling aspect of your message, and avoid unnecessary filler words or jargon.

Make every word count, and don’t be afraid to experiment with power words, emojis, or punctuation to make your subject lines even more eye-catching and engaging.

With a little practice and creativity, you’ll be crafting short, sweet, and irresistible subject lines in no time!

3. Use Urgency and Scarcity in your Emails

In the fast-paced world we live in, creating a sense of urgency and scarcity can be a powerful motivator for your recipients to take action.

By tapping into their innate fear of missing out (FOMO), you can inspire them to open your email and engage with your content right away, rather than putting it off for later or overlooking it altogether.

To effectively use urgency and scarcity in your subject lines, focus on time-sensitive offers, limited quantities, or exclusive opportunities.

Phrases like “last chance,” “24-hour sale,” or “limited spots available” can create a compelling reason for recipients to open your email immediately and take advantage of what you’re offering before it’s too late.

But remember, authenticity is key.

Don’t manufacture false urgency or scarcity, as this can backfire and damage your credibility.

Be honest and transparent about the time constraints or limitations you’re presenting, and always deliver on your promises.

When used responsibly and ethically, urgency and scarcity can be powerful tools for boosting your open rates and driving action from your recipients.

4. A/B Test Your Subject Lines

When it comes to email marketing success, there’s always room for improvement.

A/B testing, also known as split testing, is an invaluable method for identifying what resonates best with your audience and optimizing your subject lines for maximum impact.

To conduct an A/B test, create two different versions of your subject line, each with a unique element or variation you’d like to test.

This could be anything from the use of personalization, power words, emojis, or even the overall length and structure of the subject line.

Then, send these two versions to a small, randomized segment of your email list, and monitor the open rates, click-through rates, and engagement for each version.

By comparing the performance of the two subject lines, you can identify which elements or approaches work best for your audience, and use this data to inform and refine your future email marketing efforts.

Keep in mind that A/B testing is an ongoing process; consistently testing and optimizing your b2b email subject lines will help you stay ahead of the curve and ensure your email campaigns continue to perform at their best.

5. Incorporate Emojis Wisely

Emojis can add a touch of personality and flair to your subject lines, helping them stand out in a sea of plain text.

However, it’s essential to use them judiciously to ensure they complement, rather than detract from, your message.

When used effectively, emojis can enhance the overall tone of your subject line and create a more engaging experience for your recipients.

Here are some tips for incorporating emojis wisely:

  • Choose emojis that are relevant to your content and target audience. Make sure they add value to your subject line and support the message you’re trying to convey.
  • Limit your use of emojis to one or two per subject line. Overusing emojis can make your email appear unprofessional or spammy.
  • Keep in mind that not all devices and email clients display emojis consistently. Test your subject lines on different devices and platforms to ensure that the emojis render correctly.
  • Avoid using emojis if they’re not a good fit for your brand or audience. For example, if your business operates in a more conservative or formal industry, it’s best to stick with traditional text-based subject lines.

6. Leverage Power Words

Power words are potent, emotion-evoking words that can make your subject lines more compelling and persuasive.

These words tap into our deepest desires, fears, and curiosities, triggering an emotional response that’s hard to ignore. When used strategically, power words can significantly boost your open rates and help your emails stand out in a crowded inbox.

Examples of power words include:

  • Exclusive
  • Proven
  • Free
  • Limited
  • Ultimate
  • Discover
  • Save
  • Instantly
  • New
  • Secret

To make the most of power words in your subject lines, follow these tips:

Be authentic: Use power words that genuinely reflect the content of your email. Misleading or overhyping your message can damage your credibility and lead to disappointed recipients.

Match your audience’s tone and preferences: Choose power words that resonate with your target audience and align with their values, interests, and communication style.

Don’t overuse power words: While power words can be highly effective, overusing them can dilute their impact and make your subject lines appear spammy. Aim for a balance between persuasive language and a natural, conversational tone.

Test and optimize: As always, A/B testing is your friend. Experiment with different power words and their combinations to identify the most effective approach for your unique audience.

7. Avoid Spam Triggers

Despite your best efforts to craft a compelling subject line, your email might never reach your recipient’s inbox if it triggers spam filters.

Spam filters use various criteria to determine whether an email is legitimate or unsolicited, and one of these criteria is the subject line.

To ensure your carefully crafted emails make it to their intended destination, it’s crucial to avoid using words or phrases that might flag your message as spam.

Here are some tips for avoiding spam triggers in your subject lines:

  • Steer clear of words and phrases commonly associated with spam, such as “Free,” “Guarantee,” “Act now,” “Cash,” “No obligation,” and “Urgent.”
  • Be cautious with the use of all caps, as this can be perceived as shouting or overly aggressive, and may trigger spam filters.
  • Excessive use of punctuation, like multiple exclamation marks or question marks, can also be flagged as spam. Stick to one punctuation mark per subject line, and avoid using symbols that aren’t essential to your message.
  • Maintain a healthy text-to-image ratio in your email content. Emails that contain only images or large images with little text are often flagged as spam.
  • Keep your subject lines relevant and honest. Deceptive subject lines may not only trigger spam filters but also erode your recipients’ trust in your brand.
  • Maintain a clean and up-to-date email list, removing inactive subscribers and addressing bounce rates. A high number of undeliverable emails can affect your sender’s reputation and increase the likelihood of your emails being flagged as spam.

By avoiding spam triggers, you’ll give your emails the best possible chance of reaching your recipients’ inboxes, where your irresistible subject lines can work their magic and inspire opens, clicks, and conversions.


We’ve come a long way in our journey to crafting the ultimate B2B email subject lines.

From exploring the importance of subject lines in email marketing to dissecting 17 of the best examples that grab attention and compel recipients to open, we’ve given you the tools you need to transform your email campaigns.

Not only that, but we’ve also delved into the best practices for email subject lines, providing you with the know-how to personalize, optimize, and avoid spam triggers to ensure your emails get the attention they deserve.

With these tips and techniques in your arsenal, your B2B email marketing efforts are bound to thrive, driving increased open rates, engagement, and conversions.

As you continue on your email marketing journey, always remember the critical role that subject lines play in your overall success. Test, analyze, and iterate your subject lines, and never stop learning and improving. After all, the perfect subject line might be just around the corner, waiting to propel your email campaign to new heights.

So, with all this newfound knowledge and inspiration, it’s time to put these subject lines to the test and make your B2B email campaigns more effective than ever. Good luck, and happy emailing!

What is ZeroIn?

ZeroIn is a comprehensive email discovery platform designed to streamline your prospecting process.

It features an easy-to-use CRM for organizing and managing vital prospect data and offers more than 20 valuable insights about your contacts and their organizations.

Seamlessly integrated with LinkedIn Free or Sales Navigator searches, ZeroIn’s browser extension applies your search criteria and leverages its extensive database to present a complete view of your potential clients.

With up to 26 unique data points, including verified business emails, and a 10-step verification process, ZeroIn guarantees precision and authenticity in every email address you discover.

Additionally, it allows you to import, re-verify, and export leads in versatile formats, making it an essential tool for your outreach campaigns.

How can ZeroIn help your business?

ZeroIn is designed to help your business enhance outreach and sales by simplifying the prospect list-building process.

It allows you to effortlessly find and verify prospect email addresses, both individually and in bulk, ensuring that your CRM data remains accurate and current with its duplicate finder feature.

ZeroIn is ideal for small and medium-sized businesses seeking cost-effective and efficient email discovery and management solutions, offering a lifetime, one-time payment deal.

By harnessing the power of ZeroIn, you can improve your prospecting capabilities, connect with the right people, and ultimately propel your business growth to new heights.

Create a Free Account and Get 25 credits!



Why Subject lines Matter?

Subject lines matter because they are the critical first impression that recipients get from your email.

A captivating subject line determines whether your email is opened or ignored, making it the gateway to your content.

In the high-stakes world of B2B email marketing, where attention spans are shorter than ever, a standout subject line is crucial to cut through the noise and make an impact.

Why Should You Use the Best Email Subject Lines for Sales?

Using the best email subject lines for sales is vital in the competitive world of B2B sales, where your message competes with countless others for your prospect’s attention. An irresistible subject line helps you stand out, grab attention, spark curiosity, and prompt action.

What are 7 Best Practices for B2B Email Subject Lines?

Here are the 7 best practices for subject lines for b2b email marketing that can help you craft irresistible and effective subject lines:

  1. Personalize for a Human Connection: Use the recipient’s name or other relevant personal information to create a sense of connection and familiarity.
  2. Keep it Short and Sweet: Aim for subject lines between 6-10 words for optimal open rates, and make sure your message is clear and concise.
  3. Use Urgency and Scarcity: Create a sense of urgency or scarcity by using time-sensitive language or highlighting limited availability.
  4. A/B Test Your Subject Lines: Experiment with different subject lines to find the most effective ones for your audience.
  5. Incorporate Emojis Wisely: Use emojis sparingly and strategically to enhance your subject line’s message and tone.
  6. Leverage Power Words: Use strong, emotive words that evoke a reaction and encourage recipients to open your email.
  7. Avoid Spam Triggers: Steer clear of words and phrases that may flag your email as spam, ensuring your message reaches your recipient’s inbox.

By following these best practices, you’ll be well on your way to creating subject lines that captivate your recipients and drive results for your email marketing campaigns.

How useful was it?

No votes yet