Comparing Email Automation Capabilities in Enterprise Martech

Adobe Campaign V8 vs HubSpot vs Braze vs Zeta vs Marketo Engage vs Salesforce Marketing Cloud

How do you choose? Because really, how advanced can emailing get? (Spoiler: very!)

We routinely work with all the leading big-name enterprise email automation platforms: Adobe Campaign v8, HubSpot, Braze, Zeta, Marketo Engage, and Salesforce Marketing Cloud. This unbiased comparison will delve into the key features and benefits to help you understand the landscape a little better.

First, Let’s Set Some Boundaries

Email marketing software is a £1.4b+ industry ($1.9b) as of mid-2026. It’s a growth market.

But that figure only accounts for standalone email automation platforms. It doesn’t include the platforms we’re talking about.

As Gartner’s research points out, standalone platforms are “a vanishing breed” among the clients we’re working with.

Standalone email marketing service providers are a vanishing breed in both the enterprise and midmarket spaces, as vendors expand to include capabilities typical of multichannel marketing hubs (MMHs) and customer data platforms (CDPs).

Market Guide for Email Marketing, Gartner 2023

If you’re wondering why Campaign Monitor, Mailchimp, ActiveCampaign and their ilk didn’t make our list, it’s because we’re focused on the email automation functionality in enterprise marketing platforms.

Most of our clients are enterprise-sized and use full-featured marketing automation platforms. So, this guide will help if you’re:

• Thinking about switching email platforms.
• Amalgamating your martech stack.
• Growing beyond the limits of your current email platform.

Later, we’ll outline the practical considerations for all those cases. But first, let’s compare enterprise email automation features.

Adobe Campaign v8

What It Does

Adobe Campaign v8 is positioned as a cross-channel marketing platform and workflow manager.

That means it’s good at managing customer data and centralising data from different touchpoints. By the time you send an email, a lot has happened behind the scenes to make messages more personalised and profitable. And it happens at warp speed. Adobe Campaign v8 works with Snowflake database architecture, enabling you to process enormous data sets fast. We’re talking real-time personalised marketing for 1m+ database contacts in almost real time.

That said, Adobe Campaign v8 is — by Adobe’s admission — built for batch-based multichannel marketing programs. If you want a journey-focused platform, you’re looking for Adobe Journey Optimizer.

AI Capabilities

Adobe has folded generative AI into Campaign v8’s web UI. The AI Assistant drafts email content and Adobe Firefly generates images inside the same workflow. You can also run content experiments (like A/B tests) without leaving the platform.

As of the April 2026 release, AI content generation is no longer metered as a separate cost. Experimenting with AI-assisted copy and creative doesn’t add to your bill.

When it comes to journey-led AI decisioning, though, that’s where you need to think about pairing Adobe Journey Optimizer.

Who It’s For

Adobe Campaign v8 suits large enterprises with 1m+ contacts in the database and a preference for batch-based emailing. It’s great for onboarding, abandoned carts, lead generation linking to web apps, seasonal campaigns, appointment and notification systems. All those batched campaigns are seamless, even at scale.

It’s particularly well-suited for brands with big and cumbersome databases, and ideally with other Adobe Experience Cloud subscriptions.

Why We Like It

Building Adobe Campaign v8 on Snowflake architecture was a good move. The new platform is much faster than v7 and way more stable. That’s great for cross-channel automation. Fast ETL (extract, transform, load) speeds mean you can take data from any touchpoint (including offline) and use it to launch a personalised email in minutes.

On the front end, Adobe Campaign v8 is highly customisable. There’s a decent learning curve, as with all Adobe Marketing Cloud platforms. But once you’re confident, you can make intricate workflows, create personalised journeys, and get more value from connected Adobe Experience Platform apps.

Adobe’s recent push into AI is also yielding some exciting developments. Although, in our experience, these features work best in a mostly-Adobe or at least Adobe-centric stack.

HubSpot

What It Does

HubSpot Marketing Hub is an all-in-one marketing solution that includes email as standard. While there’s no standalone email marketing tool, the Marketing Hub product suite is quite email-centric.

You get a wide range of features, including customisable email and landing page templates, contact management, reporting tools and social media integration. They’re built around the HubSpot CRM, which means they’re built around the customer. Big plus. You can have 15m overall contacts, but only target emails and ads to the number you pay for.

AI Capabilities

HubSpot’s AI layer, Breeze, runs across the whole platform in a few different forms.

• Breeze Copilot drafts and personalises emails, summarises contact records and suggests next actions.
• Breeze Agents handle content creation, prospecting and support autonomously.
• Breeze Intelligence enriches contact data and surfaces buyer intent.

Email teams also get AI-driven send-time optimisation, lead scoring and personalisation at scale. The basic Copilot and Agent functionalities come with Pro and Enterprise.  Intelligence credits are metered on top.

Why We Like It

HubSpot Marketing Hub is notoriously user-friendly.

A bunch of templates and WYSIWYG builders make it easy to craft emails and landing pages, run A/B tests, segment audiences and automate simple workflows.

We also like that HubSpot is built around a CRM. While that’s not unusual in enterprise marketing platforms, it does remove growing pains.

Who It’s For

The only drawback is the complexity of HubSpot’s model. The Enterprise plan, which starts at £3k ($3.6k) per month plus a £6k ($7k) one-time onboarding fee, only gets you 10k marketing contacts (targeted contacts) and five users.

Adding more gets expensive fast. Every 10k marketing contacts costs £82 ($100) per month, plus £70 ($75) per seat over five users.

While that is comparable to other enterprise email automation platforms, it doesn’t include additional “Hubs” like Sales or Content. These can add three or four figures per month.

Bottom line, HubSpot is geared for up-to-mid-sized businesses that do a lot of emailing or don’t have a huge marketing database.

There’s a solid business case if email marketing is your main revenue channel. If not — i.e. you need more cross-channel activation or lead nurturing capabilities — HubSpot might not be right for enterprise email automation.

Braze

What It Does

Braze is an omnichannel customer engagement platform that focuses on real-time engagement and personalisation.

You can send batch emails, but Braze leans toward triggered campaigns and cross-channel personalisation.

The enterprise email automation capabilities are particularly strong in delivering personalised messages that create consistent journeys across email, mobile, SMS, and web platforms.

What’s different here is that Braze allows marketers to create and deploy dynamic, contextually relevant emails based on real-time user data.

AI Capability

Similar to HubSpot’s AI features, BrazeAI is a connected set of tools rather than a single feature.

• Sage AI agents sit as steps inside a Canvas, writing subject lines and copy that reflect what a specific user did, routing people between paths and enriching catalogue data.
• Predictive Suite scores churn and purchase likelihood.
• Intelligence Suite optimises variant, send time and channel per person.

In April 2026, Braze made BrazeAI Operator and the Agent Console generally available as an in-dashboard assistant that builds content, writes HTML and Liquid, and assembles whole journeys on request.

Who It’s For

Braze is best suited for mid-to-large enterprises that are evolving towards real-time, customer-centric engagement. Braze could be the one if you need an email marketing platform capable of handling complex personalisation at scale.

It’s particularly valuable for brands that need to deliver timely, relevant emails as part of an integrated, omnichannel CXM strategy. Think retail, eCommerce, travel and hospitality, media and entertainment – all those customer-facing cases where speed and accuracy make a big difference.

Why We Like It

Braze represents the evolution of CXM from personalised selling (that follows customers around) to personalised experiences (that move with the customer at their pace). The focus on customer engagement means emails aren’t just sent to segments.

They’re strategically designed to foster mutually valuable relationships, and work within a broader context of connected customer journeys.

Zeta ESP

What It Does

Although it’s lesser-known here in the UK, Zeta has more than earned a place on this list.

As a full-featured personalised marketing platform built around a CDP, Zeta’s closest companion in this list is Braze. That includes the way enterprise email automation features work.

Zeta Messaging, also called Zeta Enterprise Email Service Provider (ESP), is natively omnichannel. It combines sophisticated data intelligence with customer journey orchestration to deliver highly targeted cross-channel communications.

In other words, Zeta is an example of the evolution away from batch-and-blast marketing towards customer-centric, always-on experiences.

AI Capabilities

Zeta runs its AI off a proprietary Intelligence Engine that draws on 12bn+ identifiers and thousands of real-time signals.

ZOE, its conversational assistant, answers natural-language questions and surfaces insight. Athena, the newer agent, orchestrates action across a suite of agentic apps.

Pre-built and custom AI agents handle specific jobs, like one that audits email campaigns for accuracy, compliance, and consistency across versions and segments before sending.

Who It’s For

In our experience with Zeta, it’s particularly effective for businesses that need deep data integration and advanced analytics to drive personalised marketing at scale.

You might not send as many emails, but the emails you do send will be significantly more valuable.

It’s useful for global email lists, thanks to robust compliance measures. But it’s especially useful for making sure the right message goes out on the right channel.

Being built on a CDP, Zeta Messaging helps you craft valuable experiences using customer information and trillions of other data points.

Why We Like It

We appreciate Zeta’s focus on creating highly personalised experiences at scale. That’s essential for driving engagement and conversions in today’s competitive landscape.

The comprehensive analytics and reporting tools also provide valuable insights that help marketers continuously optimise their strategies and achieve better ROI.

Marketo Engage

What It Does

Marketo Engage is almost the B2B version of Adobe Campaign v8. Almost.

Marketo excels in lead nurturing, segmentation and analytics. The email automation tools leverage CRM connectors because Marketo, like Campaign and unlike HubSpot, is not a CRM.

Other marketing automation features like predictive account identification, lead generation and content personalisation draw on the same data. It allows marketers to create highly personalised and targeted email campaigns, enabling a better breed of B2B customer experience.

However, unlike Adobe Campaign v8, Marketo Engage doesn’t integrate directly with Snowflake. There are custom API workarounds, but you’re not going to get the same speed and scalability. That might not be as important, depending on your use cases and growth plans.

AI Capabilities

Marketo has embedded AI as a set of generative features inside the platform.

It’s centred around AI Assistant in the Email Designer which drafts copy, subject lines and variations tuned to persona, journey stage and tone. This works with Adobe Firefly to generate images and brand-compliance controls.

There’s also an image-to-HTML converter that turns a (compliant) PNG or JPEG into an email template.

Adobe also recently added an agentic conversational interface and an MCP server, so external AI tools and agents can read, write and act on Marketo data directly.

Who It’s For

In our (extensive) experience, mid-to-large B2B companies with sophisticated lead management needs get the most value from Marketo Engage. It’s tuned for complex sales cycles, account-based marketing strategies, and sales and marketing alignment.

Marketo stands out for scalability, security and consistency. That’s particularly important for brand houses or global companies. For example, we’re working with Colliers to unify marketing intelligence for teams in 11+ countries using a single, segmented Marketo Engage instance. You can read more about that here.

Why We Like It

Marketo’s big selling point is sales and marketing alignment. When it’s used as a hub for B2B marketing automation, and all your teams, data flows and processes are set up accordingly, you’ll get great ROI. This goes both ways. Marketo Engage both enables sales and marketing alignment, and performs better when sales and marketing are aligned.

Salesforce Marketing Cloud Engagement

What It Does

Salesforce Marketing Cloud Engagement — the enterprise email automation platform previously known as Pardot — is Salesforce’s email, mobile, and advertising tool. Actually it’s two tools:

1. Marketing Cloud Engagement: B2C email/mobile/ads.
2. Marketing Cloud Account Engagement: B2B, previously Pardot.

Like other Marketing Cloud tools, Engagement and Account Engagement are built on Salesforce’s proprietary CRM. Vendors like Adobe work with third-party CRMs (including Salesforce), while Salesforce tools benefit from a direct connection.

“But that’s like HubSpot Marketing Hub!” you cry. Yes and no.

Despite the similarities, Salesforce Marketing Cloud Engagement are bigger, more scalable, and better suited to messaging large databases. HubSpot is favoured among inbound marketers and growing companies.

The other difference that helps you understand Salesforce Marketing Cloud is the way its features are positioned. The product list includes:

• CDP
• Email, mobile and advertising
• B2B marketing automation
• Loyalty management
• Referral marketing
• Cross-channel and journey personalisation
• Analytics

Looking at this list, it seems like Salesforce is reinventing itself. It used to be the ‘big strong CRM with marketing features,’ and now it’s the ‘build-it-yourself marketing automation hub’.

AI Capabilities

Salesforce splits its AI across Einstein and Agentforce.

Einstein handles the email-marketing staples:

• Engagement scoring to predict opens, clicks and conversions.
• Send-time optimisation.
• Predictive audiences
• Generative content.

Einstein Personalization tailors messages across web, email and ads.

Agentforce, the headline of Salesforce’s 2025–26 AI push, adds autonomous agents that run multi-step workflows across Sales, Service, and Marketing Cloud, powered by Data Cloud and the Einstein Trust Layer.

The trade-off is setup. Agentforce needs Data Cloud and extensive configuration. It often comes with high consumption-based pricing as well.

Who It’s For

Salesforce’s tools are best for large enterprises that already use the Salesforce CRM and need an integrated marketing automation solution.

That’s true for B2C and B2B CXM use cases alike. They’re particularly popular among enterprise companies with extensive customer databases and complex email marketing needs.

Although we were comparing HubSpot and Salesforce Marketing Cloud Engagement a minute ago, it’s really more of an Adobe Campaign competitor.

Both tools connect to Salesforce CRM. It’s up to you whether Adobe’s features meet your needs better than Salesforce’s or vice versa.

Why We Like It

We like Salesforce Marketing Cloud Engagement and Account Engagement for scalability and depth. The native integration with Salesforce CRM means that email campaigns are data-driven and aligned with broader customer engagement strategies.

This leads to more consistent and intelligent experiences. Additionally, you get some pretty advanced analytics with Salesforce leaning into AI.

While it comes with a steep price tag, the value it delivers in terms of capability and integration makes it a top choice if you can afford it.

How To Pick an Enterprise Email Automation Solution

We could keep picking apart the features of each platform. We could compare email deliverability rates, ETL speed, personalisation options and experience-building tools. But at the end of the day, which email marketing tools you’ll choose comes down to three things:

• Specific use cases: Are you primarily focused on email marketing, or do you need a more comprehensive marketing automation platform?
• Business profile: Although the lines are blurring between B2B and B2C marketing, most tools still lean in one direction. It’s important to choose tech that integrates with your operations.
• Personal preference: Ultimately, the best platform for you is the one that you and your team feel comfortable using.

In our experience, these are the main drivers. But there’s one that trumps them all.

How Valuable Is The Platform?

Marketing platform migrations aren’t easy. Before you think about a new email automation tool, consider what email means to your organisation.

Where does it sit in your CXM strategy? How does email create value for customers? Where is that value reflected in your business goals?

The modern marketer’s challenge is to put the customer at the centre of every interaction.

Your enterprise email automation platform should enable that. It should help you evolve from batch-and-blast communications to personalised, progressive experiences.

This requires more than just user-friendly features. It demands clarity around customer behaviour, preferences and lifecycle stages. Crucially, you can’t lose that clarity as you grow.

So, when it comes to choosing an enterprise email automation platform or integrated stack, certainly consider your use cases and personal preferences. But also consider:

• Customer centricity: Look for platforms that integrate with your planned evolution from personalised selling to personalised experiences.
• Growth ambitions: How far does your email tool need to scale? Consider database size, user limits, and pricing structures.
• Think long-term: The latest agentic AI features are exciting, but enterprise email automation usually comes with multi-year contracts. Don’t get swept up by hype.
• Creating mutually valuable experiences: To win in the new world of enterprise marketing, you need to know your customers. Choose the tool that gives you room to mature.

Get The Best Tools For Your Business Case

Choosing the right enterprise email automation solution is a crucial decision. Still, email is just one piece of the puzzle.

At Tap CXM, we understand the challenges and practicalities of martech stack decisions. We know the real impact comes from how well martech is integrated into your broader CXM strategy.

By working with you to align strategy, process, data and technology behind business goals, we can help you evolve into a truly customer-centric organisation. Our focus is on enabling you to create mutually rewarding experiences that deliver quantifiable value.

Whether you’re in the final stages of selecting a new enterprise email automation tool or just starting on the quest to overhaul your CXM strategy, we can help.