New
Are you ready for Agentforce? Take our assessment to find out today!
    • Expertise
          • Product

          • Sales Cloud
          • Service Cloud
          • Account Engagement
          • Marketing Cloud Next
          • Revenue Cloud
          • Agentforce
          • Data 360 (Data Cloud)
          • CRM Analytics
          • Tableau Next
          • Experience Cloud
          • Industry

          • Manufacturing
          • Healthcare
          • High Tech
          • Financial Services
          • Media & Entertainment
    • Solutions
      • Consulting
      • Implementation
      • Managed Services
      • Health Check
      • Training
    • About Nebula
      • We Are Nebula
      • Meet the Team
      • Join Our Team
    • Resources
    • Login
    • Get in Touch
Share:

Avoid These 6 Email Marketing Mistakes to Maximise Long Term Success

by Kyle Blacker
5th September 2023 • 5 min read
Kyle Blacker
Share:

In today’s digital era, email marketing remains a powerful tool for businesses to connect with their audience, drive engagement, and ultimately boost conversions. Whilst the potential benefits are immense, navigating the landscape of email marketing requires finesse, attention to detail and evaluation over time. From crafting compelling subject lines to delivering content that resonates, there are numerous factors that can make or break the success of your email campaigns.

In this blog, we’ll explore a range of common email marketing pitfalls that even seasoned marketers can stumble upon. Whether you’re a business owner, a marketer, or someone just venturing into the world of email outreach, understanding and avoiding these mistakes will support maximising the impact of your email marketing efforts. Let’s dive in and uncover the key missteps that can hinder your email marketing success, and, more importantly, learn how to sidestep them to achieve optimal results.

Mistake 1 – Not optimising emails for Mobile devices

It pains me to have to put this one first, but unfortunately, it is still very much a common issue I see, even from big brand names. According to HubSpot’s latest findings, 41% of email opens occur on mobile, 39% on desktop, 19% on Tablet, and the remaining 1% on other devices. This data doesn’t just suggest, it means your emails need to be optimised for mobile. It’s never been easier to test your emails on different devices thanks to the many tools out there compiling your emails in an easy to digest view allowing you to immediately identify where things aren’t working as they should. You can find some additional tips on how to achieve this in our other blog post.

 

 

Mistake 2 – Neglecting Personalisation

In the pursuit of efficiency, it’s easy to overlook the power of personalisation in your emails. Neglecting to personalise your emails can lead to disengagement and a lack of connection with your audience. Personalisation goes beyond addressing recipients by their names; it involves tailoring content to individual preferences, behaviours, and needs. Dynamic content in particular can be a great tool in your marketing arsenal in this regard. With this, you can dynamically display specific content to your prospects based on existing pieces of data you already have without having to send separate emails.

Mistake 3 – Ignoring Analytics

Another common – not necessarily email marketing mistake, but oversight – is not reviewing email send metrics. It’s a constant learning process and key to building success for future email marketing efforts. A good aid to help work toward is to review Campaign Monitor’s industry benchmarks. Even if you are meeting the average shown for your industry, it doesn’t mean you shouldn’t review your email analytics! Reviewing your email campaigns over time will help you create more targeted, personalised emails that deliver better results. Keep a pulse on your open rates, click through rates, etc. What can you do next? Should you try A/B testing, changing the subject line, or revamping your email layouts? Your data will guide you! Account Engagement provides several tools to help with this, one being the Advanced Email Analytics feature, and another being B2BMA dashboards.

Mistake 4 – Abandoning your unengaged segments

Piggybacking slightly from the last point, identifying unengaged prospects is important. Just because you have a pool of prospects that don’t frequently (if ever) engage with your emails, doesn’t mean you should just leave them or delete them from your database. It’s recommended that you try a different approach with these prospects, a re-engagement campaign of sorts, targeting these segments (remember the first thing people usually see in their inbox is the subject line and or preheader). Try something different, but still provide relevant content to these audiences. You never know until you try! Worst case scenario, you can always free up your database if those unengaged prospects still don’t bite. If you need some ideas on how to start tidying up your database, look no further than our post here for insight and tips.

Mistake 5 – Ignoring Accessibility

Email accessibility ensures that individuals with disabilities can fully engage with your content. This includes those using screen readers, and individuals with visual impairments, cognitive challenges, or motor disabilities. In fact, making your emails accessible benefits everyone, as it creates a more user-friendly experience overall. Some things to consider are;

  • Colour contrasts
  • Descriptive Alt text applied to your images
  • Is your email screen reader friendly? Test it!
  • Font size

Mistake 6 – Don’t forward test emails!

You test an email, it looks good, you’re happy, you then forward it to your colleagues for another glance. All of a sudden you’re getting feedback that the layout is broken in multiple sections. But it looks good for you, so what’s happened? The issue here could lie with forwarding emails using your inbox’s default ‘forward’ button. This almost guarantees that your email will come through a broken mess on the recipient’s side. If you want your peers to also test an email accurately, simply send it to them directly from your email client!

In the examples below you can see screenshots of before and after an email was forwarded from one inbox to another.

Email sent directly to an Outlook inbox

An email that is rendering well in Gmail

The same email, just forwarded to another Outlook inbox

The same email but with several areas having changed

Notice the extra padding at the top, font size changes, CTA change and the thin white horizontal line under our logo

 

Remember, email marketing is very dynamic, and best practices can evolve over time. Staying updated and continuously learning from your mistakes and successes will help you refine your strategies for better email marketing results.

Find related resources by topic

Marketing

You may also be interested in

Fix the Foundations: Success in the Agentic Era Marketing Edition
Blog
Marketing

Fix the Foundations: Success in the Agentic Era Marketing Edition

We hear the announcements and on repeat about how the Agentic Era is here to transform the B2B and B2C landscapes. These changes will enable…

4 min read Read Blog
Laying the Right Foundations
Success Story
Account Engagement Sales Cloud

Laying the Right Foundations

Complex processes and cautious stakeholders hindered Redwheel's CRM adoption. Nebula's Account Engagement and Salesforce audits mapped the journey, restoring confidence and delivering a strategic roadmap for a powerful, sales-enabled CRM.

May 27, 2025 Read Customer Story
How to Avoid Completion Action Limits in Account Engagement (Pardot) Using Engagement Studio
Blog
Marketing

How to Avoid Completion Action Limits in Account Engagement (Pardot) Using Engagement Studio

Conditional completion actions and completion actions, while powerful, can quickly consume the available limits on your forms and form handlers. If you’ve been creating and managing…

3 min read Read Blog
Aligning Marketing and Sales for a Global Insurer
Success Story
Account Engagement Sales Cloud

Aligning Marketing and Sales for a Global Insurer

Poor email deliverability and disconnected data misaligned Lockton's sales and marketing. Nebula's Salesforce and Account Engagement integration established governance, delivering a 97% delivery rate, 25 empowered users, and transparent insights.

Apr 30, 2025 Read Customer Story
Upgrade Your Form UX with Toggle Switches
Blog
Marketing

Upgrade Your Form UX with Toggle Switches

If you would like to modernise your forms, provide a slicker user experience, and match contemporary web design, follow our mini guide that helps you…

2 min read Read Blog
Creating a seamless membership experience
Success Story
Account Engagement Sales Cloud Service Cloud

Creating a seamless membership experience

Data silos and disparate systems hindered the World Travel and Tourism Council's membership experience. Nebula's Cvent integration, record cleansing and automated invoicing delivered rapid efficiency, unified data, and a 10-year partnership.

Jan 30, 2025 Read Customer Story
Account Engagement Landing Page Conversion Mastery
Blog
Marketing

Account Engagement Landing Page Conversion Mastery

Building pages that truly perform in Account Engagement isn't just about clicking buttons; it's about strategy, technical finesse, and empathy for the user. Here’s my…

5 min read Read Blog
Targeted Sales Enablement for Users
Success Story
Account Engagement CRM Analytics Sales Cloud

Targeted Sales Enablement for Users

Stale opportunities and missing data delayed Clarion Events' pipeline. Nebula's Einstein Next Best Action delivered intuitive guidance, surging stage moves by 132%, doubling activities, capturing crucial VAT details, and boosting CRM adoption.

Jan 3, 2025 Read Customer Story
5 Hidden Snags in Account Engagement
Blog
Marketing

5 Hidden Snags in Account Engagement

Managing Salesforce Account Engagement (Pardot) requires more than just marketing knowledge. Even in a well-established org, you can sometimes hit some invisible walls. Below are…

4 min read Read Blog
5 new Marketing Cloud Next features we’re excited to try
Blog
Marketing

5 new Marketing Cloud Next features we’re excited to try

The Spring ’26 release is here, and it’s a significant milestone for Marketing Cloud Next (also known as Agentforce Marketing). This release focuses on making…

4 min read Read Blog
Nebula

Our journey started in 2012 with a clear vision and core values. Nebula is dedicated to empowering our customers through fostering relationships founded on collaboration, flexibility, and trust.

  • We Are Nebula
  • Resources
  • Join Our Team
  • Terms and Conditions
  • Privacy Policy
The Space Aldgate,
Irongate House,
22-30 Dukes Place,
London EC3A 7LP
+44 207 112 8026
Get in Touch
Copyright © 2026 Nebula Consulting. All Rights Reserved.