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The comprehensive guide to B2B email marketing campaigns

Holly Locastro

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February 14, 2025

Three people sit around a wooden table using laptops. A vase of tulips and a desk lamp are on the table, along with a book and some phones.3 sky blue lines like a ray

What is email marketing?

Did you know that email marketing still delivers one of the highest ROI of any B2B marketing channel? Yet, many businesses overlook its potential.

Email marketing is a digital marketing channel that involves sending targeted messages to an audience via email. It allows businesses to build relationships, nurture leads, and drive conversions. Over the years, email marketing has evolved from newsletters to advanced automated campaigns that deliver highly personalised experiences.

B2B email marketing campaigns are one of many channels in the marketer’s arsenal. With more shiny marketing tools and platforms popping up every day, good old email marketing is becoming perceived as ‘outdated’ in some circles.

But implemented well, with a solid strategy, great tech and amazing content, you won’t get better bang for buck anywhere. It’s still one of the highest-converting channels for middle and bottom-of-funnel leads. 

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Fact Flash:

Email still drives one of the highest ROI out of all B2B marketing strategies. According to a 2024 report, on average, businesses can earn up to $46 for every dollar spent on email marketing (Statista, 2024). The first email marketing blast was sent in 1978, and it generated $13 million in sales, a testament to the potential of this channel even in its early days (Smart Insights, 2013).

But the art form is evolving – and to predict the future, we first need to go back a little.

How B2B Email Marketing Campaigns Have Evolved

Even though it’s one of the oldest digital marketing channels, email marketing has continuously evolved to remain relevant. Let’s take a look at how it has changed over time.

Email marketing has progressed in three main ways:

  • The emails themselves (how they’re written and built),
  • And the list of recipients (how it’s obtained, segmented and nurtured),
  • And marketing automation (how we trigger emails and sequences).

In the ‘old days’, email marketing was only employed by a few forward-thinking marketers and salespeople. The copy followed a letter correspondence-like format. It was regular, intimate, and effective.

One of the first movers into email marketing was Gary Vaynerchuk.

From his blog:

“When I was building up business for WineLibrary.com, I relied heavily on email marketing. It was 1996, and email marketing had not taken off yet, but our list had 400,000 contacts. And my open rate back then? 80%. No joke. Now, they’re in the twenties. They’re in the twenties for everyone. But I reaped years and years of benefit from the 80% rates because I hopped on email early.”

Then the deluge came.

Businesses would purchase huge lists of contacts without making sure the people on those lists would actually care about their offer. They’d blast a sales message out and see what came back. Open rates could be slim and conversions could even more so.

(This practice still happens today and we strongly recommend against it. You’ll end up blocked from your email provider and known across the internet as a no-good spammer).

The backlash began.

Filters were introduced to our inboxes. The Spam Act was introduced to Australian law in 2003. More recently, government regulations like the GDPR in Europe introduced huge deterrents to businesses that obtain customers’ details or contact them without express permission.

Today, email marketing hasn’t slowed down, but the approach has gone from a shotgun blast to more of a gentle hug. Instead of shouting into the void, we’re trying to start a conversation, and new technology means we can personalise our content to make that conversation a lot more relevant to the individuals within our audience.

We can now split our audiences into smaller, much more interesting segments than ever before. We can split audiences by the actions they take, as well as being able to segment by demographics. Basically, we’re trying to recapture that early email magic and achieve the relevance and intimacy that those first email marketers enjoyed.

B2B email marketing has come a long way from mass email blasts with generic messaging. Today, the focus is on segmentation, automation, and personalisation. Businesses leverage data and advanced tools to create tailored campaigns that resonate with specific audience segments.

A modern B2B campaign might involve sending a series of onboarding emails tailored to different industries, ensuring relevance and improving their engagement.

Email Marketing Stats 2025: Key Insights for B2Bs

We all love a good stat. In fact, the only thing better than one is a bunch!

Here are a few email marketing stats that every email marketer needs to know about in 2025:

From a marketer’s perspective:

Email continues to go from strength to strength, proving itself as one of the most cost-effective ways to build an audience and a business.

  • 81% of B2B marketers say their most used form of content marketing is email newsletters (Content Marketing Institute, 2024).
  • Email generates an average ROI of $46 for every $1 spent (Statista, 2024).
  • 89% of marketers use email as their primary channel for lead generation (HubSpot, 2024).

Australian email benchmarks

Campaign Monitor (a service we use and endorse 👍 ) updates its email benchmarks each year. 2020’s Australian results make for some interesting reading. A few highlights:

  • Average click-through rate: 2.3%
  • Average click-to-open rate: 10.5%
  • Best day for highest email open rates: Mondy 22.0%
  • Best day for highest click-through rates: Tuesday 2.4%
  • Worst day for lowest email open rates: Sunday 20.3%Worst day for lowest click-through rates: Saturday and Sunday 2.1%

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Bet You Didn't Know:

Perhaps unsurprisingly, some people forgot to review their automated campaign offers. As a result, we saw a downturn in automated email engagement that we haven’t seen before—the average click rate in our last report for an automated email was 23%. Transactional emails, however, saw a big increase in engagement, jumping from an average click-to-open rate in our last report of 23% to an average of 31%

Types of B2B Email Marketing Campaigns and When to Use Them

B2B email campaigns generally fall into three categories:

Single email campaigns

One-off emails for announcements, event promotions, or product launches.
Example: A SaaS company sends a one-time email promoting an exclusive webinar for enterprise clients.

Trigger-based emails

Automated responses based on specific user actions, such as signing up for a webinar.
Example: A prospect downloads a whitepaper and receives a follow-up email with a case study related to their industry.

Email sequences

A series of emails designed to nurture leads over time.
Example: A B2B agency nurtures leads by sending a series of educational emails before offering a consultation call.

Which you’ll use will depend on your audience and your offer. B2B businesses will need a different approach to their B2C counterparts as the sales cycles are typically longer and more information needs to be shared. That’s why email sequences are a great addition to any B2B email marketing strategy.

Let’s dig into each type in more detail.

One-off campaigns: like your monthly newsletter, new product announcement, or an alert for special EOFY pricing.

It’s important to still segment your data and tailor your emails to each segment. You don’t have to create completely new emails for each, but choose a section or portion of the email to personalise, such as the introduction or one of the pieces of content you’re promoting.

If you have a really well set up database with good segmentation, you can use ‘conditional content’ to show different people different things, depending on what’s most relevant for them.

B2b email marketing campaign image

Trigger-based emails: triggered by an action the contact takes – e.g. clicking a link in another campaign or visiting a page on your website.

Sending emails based on triggers requires you to have a little bit of tracking set up on your website. You can do this through your email provider (or we can help).

Here’s how it works: An existing prospect (someone who has already entered their details on your site) revisits a particular page—for example, one of your product pages. An hour later, they get an email asking if they have questions about the product or offering them a 10% discount.

Another example is someone visiting a specific page on your website but not entirely converting (i.e., not filling in a form). If they’re already in your database, you can send them an email asking, ' How can we help?’

an image of B2b email marketing campaign

General email sequence: a predetermined suite of emails that you send out to your contacts over time, regardless of their behaviour.

A prospect enters their details through your website and is added to your system as a ‘cold’ lead. This campaign aims to pique their interest by sending them content they might be interested in.

You could trigger a general email sequence when a prospect takes a specific action linked to an email delivery—for example, entering their details to unlock an ebook download. You might then send one email to deliver the ebook, one a day or two later to remind them to download it, and another in a week to see what they think and suggest something else.

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Nurture email sequence: You can take the single action-based email a step further by applying the same logic across an entire sequence.

This is similar to a general sequence campaign but with an added layer of personalisation based on your prospect's actions.

For example, if the reader visits a page on your website or clicks a link in a previous email, they might trigger a series of emails with more information about the topic they’ve clicked on.

email sequence

How to Build and Segment Your B2B Email List Effectively

Of course, an email is no good if nobody is there to read it.

You’ve got to start somewhere – so don’t let a small list of contacts stop you from developing campaigns and sequences.

However, you must include email list building into your overarching email (and marketing) strategy because sending campaigns to the same people week in and week out will not yield the results you want.

We encourage all of our clients to focus on building up their customer and prospect databases. Ideally, you want many contacts, each with a lot of data—name, business, locale, and one or two other qualifiers unique to your objectives.

Here are a few quick ideas for building up your contact list:

  • Ask your current contacts if they want to receive your email updates (an important note: you can’t just add them to your list. They need to give you their express consent. Otherwise, you’re in breach of data privacy laws).
  • Opt-in forms: Place them on your website, landing pages, and social media.
  • Create a ‘lead magnet’ (a valuable piece of content) for which prospects will exchange their email address (note, this is a crowded space, so make sure your offering is of actual value – if you don’t, this is a waste of time). Our ‘B2B email marketing checklist’, which you can download above, is an example. Promote the lead magnet wherever you can – on your website, on its landing page, in your email signature or anywhere else you can think of. If you have the budget, promote it using targeted social media ads.
  • Run a competition whereby entrants provide their email addresses to enter the draw to win a prize. Add a checkbox asking if they consent to receiving emails from you.
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Did you know?

Hot tip: Avoid purchasing email lists—this can lead to low engagement, deliverability issues, and even legal consequences under GDPR and other regulations.

Optimising B2B Email Marketing Campaigns for Better Results

Knowing your audience is essential when you’re developing your strategy.

Emails sent with the wrong tone of voice or with the wrong kind of content won’t resonate with your audience and will severely hamper the effectiveness of your campaigns.

You also need to consider the timing of all email marketing elements. Sending random emails every couple of months isn’t going to help you build your empire—you need constant conversation.

So before you write an email, decide what you want to achieve?

Before you dive into email marketing, align your goals with your business objectives. Are you focused on generating leads, driving sales, or educating your audience? How will you measure success—open rates, click-through rates, or conversions?

Step one: decide on your structure

Every business is different, but we think a combination of regular single campaigns, longer email sequences, and action-based emails is a strong mix. You don’t have to build these all at once—you’ll do them over time, starting with the most important and adding functionality and content as you go.

The exact structure will depend on your industry and audience, your internal goals, and the resources you have on hand (or can outsource).

Step two: write your email copy

Once you have the structure worked out, it’s time to write your emails.

If you have a copywriter on hand, give this job to them. If not, you might consider giving it to an agency. Your emails need to reflect your brand’s tone of voice and personality while still conveying all the essential information and leading the customer to act in a certain way (by downloading a guide or purchasing a product, for example).

There are a few schools of thought on how and what you should write about. A safe bet is to stay true to your roots and focus on telling simple stories that you can then relate to your product or brand. Businesses we talk to tend to think that because we’re writing for B2B, we need to fill our emails with technical jargon and marketing-speak. Don’t forget that B2B buyers are people, too – they laugh, they like to be entertained, and they see right through you when you try to be too clever.

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Did you know?

Hot tip: Space out your amount of ‘sell’ over the course of the email sequence, going from a 0 in the first email to a 9 or 10 in the last. Try to have some thematic or stylistic elements consistent throughout the sequence, or at least appear near the beginning and come back at the end.

Step three: optimise

The journey doesn’t end when you press ‘send’ – in fact, it’s quite the opposite. You need to constantly review and refine your email sequences.

Look through the data and let it tell you what’s working and what isn’t. Based on the emails' performance, it’s important to adjust your structure, copy, and visuals—as well as the timing of the sequence.

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Did you know?

Hot tip: You can optimise by split-testing elements of your emails. Split testing is where you send two different versions of an email to a segment of your list – the one that performs best is then sent to the rest of the group. Your email software should let you do split testing fairly easily. Test your subject lines, pre-header text, send time and ‘from’ name – and test different content against each other using your email marketing platform's ‘conditional content’ feature.

Copy components of great B2B email marketing campaigns

Stories: People love to hear stories, and if you can reveal something about you or your organisation, that’s win-win. Businesses are full of interesting stories, but often, our clients don’t see them because they’re too close. A story can come from anywhere, so keep an ear out and announce to your staff that you’re actively looking for tales to tell.

Offers: There’s nothing like a good old-fashioned offer to get people clicking through.

Social proof: Case studies and testimonials from happy clients always make for compelling email content.

Teases: You want to become a welcome presence in peoples’ inboxes – and one way to do that is to build excitement for your next email. Use a ‘PS’ to promote what you’ll discuss next time, or weave it into the body copy if you can.

Subject lines:  Too often,​​ we see subject lines treated as an afterthought when they’re one of your most important elements. Nobody will see the email you’ve crafted if your subject is boring; instead, grab your contact’s attention with a clear, compelling subject line.

Example: “10 Strategies to Boost Your Sales in 2024.”

Body copy: Focus on your audience’s pain points and solutions your product or service provides.

Call to action: Use action-oriented language to encourage the next step.

Example: “Download Your Free Guide Now.”

‘One-percenters’: Remember the essential micro-content—pre-header copy, ‘from’ name, and unsubscribe copy (a bit of humour here may stop contacts from unsubscribing).

Final Thoughts on B2B Email Marketing Campaigns

B2B email marketing remains one of the most powerful tools for engaging potential clients and driving conversions. Businesses can maximise ROI and build lasting relationships with their audience by focusing on segmentation, automation, and strategic content.

Looking to improve your B2B email marketing? Book a free email strategy consultation.

B2B email marketing glossary

Email list: the list of contacts you’ll be sending emails to.

Data segmentation:  Dividing your email list into smaller groups based on shared characteristics.

 – for example, locale. You can segment this any way you like, but ensure you have the same information for every contact; otherwise, it gets messy.

Tagging: You can tag your contacts to segment them further or more specifically. For example, if you deal with both government and private organisations and want to speak to each separately, you can tag them as such.

Personalisation:  showing readers unique information based on what you know about them (for example, saying ‘Hi Holly’ or giving me a Melbourne-specific deal).

Email campaign (single): Any singular email sent in isolation. These can be regular or one-off.

Email sequence: A series of automated emails sent based on specific timelines or actions, working towards an end goal.

Action-based autoresponder: An email sent based on an action—for instance, someone entering their details to download an ebook will then receive an automatically triggered email to download the ebook. Another example is a ‘forgot my password’ email.

Hard bounce: An email that returns to you because the email address is invalid. Remove these from your database, or they’ll skew your results.

Soft bounce: An email that temporarily can’t be delivered. It could be because it’s too large or your recipient’s email server is down.

Split testing: You can test all kinds of email elements like subject lines, CTA buttons or header images by sending two emails and comparing the results against each other. Your email software will be able to set up and show you the winner. Remember, only test one element at a time so you know what’s making the difference.

Open rate: The percentage of people who opened your email out of everyone who received it.

Click-through rate: The percentage of people who clicked a link inside your email out of everyone who opened it.

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