How Long Should Your Marketing Emails Be? You Might be Surprised


length of marketing emails

Email marketing promotion is one of the most essential tools small businesses use to win more clients. Having an established mailing list and consistent frequency allows businesses to gauge what strategy and messaging works best.

But what are the best possible elements an effective email promotion should have?

According to research conducted by Constant Contact, there are optimal numbers of images and lines of text small businesses should include in email marketing campaigns to optimize their click-through rates.

Senior vice-president of Constant Contact Christopher Litster says click-through rates convey how often your email subscribers click on the links in your email. It is therefore the best measurement of e-mail content quality and effectiveness as a marketing tool.

According to the research, 20 or fewer lines of text with three or fewer images results in the most number of click-throughs per email.

But the results can vary in different industries.

For example, email subscribers of non-profit  organizations prefer more lines of text and images than the average reader, the study found. Specifically, members of non-profit associations continue to actively click-through even on emails of between 20 and 30 lines of text. And non-profit membership organizations similarly see good click-through rates on email messages with between 15 to 30 lines of text.

Business and service companies need more images in their e-mails — about 13 to 16 —  to gain highest click-through rates due to the fact that subscribers expect visuals of products and services. Restaurants, salons and spas similarly need larger amounts of images — at least 15 — in their email promotions to get peak click-through rates.

Retail businesses, meanwhile, seem to  have among the least flexibility in the number of lines of content that convince audiences to click. The study suggests click-through rate for retail  businesses rises by 50 percent with 17 lines of text ad the falls by 50 percent after 19 lines. So that’s a mighty narrow range for content writers to consider.

Tailoring Email Content for Maximum Click-Through Rates

When crafting your email marketing promotions, it’s crucial to consider the specific elements that resonate with your target audience. Here are key insights on tailoring email content for maximum click-through rates, based on industry and content type:

  • Non-Profit Organizations:
    • Optimal Lines of Text: 20 to 30 lines.
    • Recommended Number of Images: 3 or fewer.
    • Non-profit members engage actively with emails containing slightly longer text and minimal images.
  • Business and Service Companies:
    • Optimal Lines of Text: Balancing around 17 lines.
    • Recommended Number of Images: About 13 to 16.
    • Visuals of products and services are crucial for engagement in this sector.
  • Restaurants, Salons, and Spas:
    • Optimal Lines of Text: Around 15 to 20 lines.
    • Recommended Number of Images: At least 15.
    • These businesses benefit from image-rich email promotions to showcase offerings effectively.
  • Retail Businesses:
    • Optimal Lines of Text: Tread carefully within the range of 17 to 19 lines.
    • Recommended Number of Images: Balance text with visuals.
    • Retailers have a narrow range for text content; exceeding 19 lines can result in decreased click-through rates.
StrategyDescription
PersonalizationIncorporate recipient's name or personalized details in the subject line to capture their attention.
Curiosity SparkersCraft subject lines that spark curiosity or pose intriguing questions, compelling recipients to open the email for answers.
Urgency and ScarcityUse language that creates a sense of urgency or highlights limited-time offers to drive immediate action.
Clarity and RelevanceEnsure subject lines clearly convey the email's content and relevance to the recipient's interests or needs.
A/B TestingContinuously test different subject line variations to identify which ones resonate most with your audience.
Emojis and SymbolsConsider using emojis or symbols sparingly to add visual appeal and convey emotions or themes.
Length and Mobile OptimizationKeep subject lines concise and mobile-friendly to ensure they display effectively on all devices.

How Long Should Your Marketing Emails Be? You Might be Surprised

Benefits of Email Marketing Automation

  • Increased Efficiency: Automation eliminates the need for manual, repetitive tasks such as sending welcome emails, birthday greetings, or order confirmations. This frees up valuable time for businesses to focus on strategy and creativity.
  • Personalization: Automation tools enable businesses to segment their email list based on customer behavior and preferences. Personalized emails are more likely to resonate with recipients and drive conversions.
  • Timely Communication: With automation, businesses can send emails at the right moment, such as cart abandonment reminders or post-purchase follow-ups. Timely communication can significantly impact customer decision-making.
  • Consistency: Maintaining a consistent email schedule is crucial for engagement. Automation ensures that emails are sent on time, even when businesses are busy or operating in different time zones.
  • Scalability: As a business grows, so does its email list. Automation scales effortlessly to handle a larger subscriber base without a significant increase in manual effort.

Subject Line Strategies for Improved Email Engagement

Enhancing email engagement extends beyond content and visuals; your subject line plays a pivotal role. Here are effective strategies to boost email open rates:

  • Personalization: Incorporate the recipient’s name or other personalized details in the subject line to capture their attention.
  • Curiosity Sparkers: Craft subject lines that pique curiosity or pose intriguing questions, compelling recipients to open the email for answers.
  • Urgency and Scarcity: Use language that creates a sense of urgency or highlights limited-time offers to drive immediate action.
  • Clarity and Relevance: Ensure subject lines clearly convey the email’s content and relevance to the recipient’s interests or needs.
  • A/B Testing: Continuously test different subject line variations to identify which ones resonate most with your audience.
  • Emojis and Symbols: Consider using emojis or symbols sparingly to add visual appeal and convey emotions or themes.
  • Length and Mobile Optimization: Keep subject lines concise and mobile-friendly to ensure they display effectively on all devices.
StrategyDescription
PersonalizationIncorporate recipient's name or personalized details in the subject line to capture their attention.
Curiosity SparkersCraft subject lines that spark curiosity or pose intriguing questions, compelling recipients to open the email for answers.
Urgency and ScarcityUse language that creates a sense of urgency or highlights limited-time offers to drive immediate action.
Clarity and RelevanceEnsure subject lines clearly convey the email's content and relevance to the recipient's interests or needs.
A/B TestingContinuously test different subject line variations to identify which ones resonate most with your audience.
Emojis and SymbolsConsider using emojis or symbols sparingly to add visual appeal and convey emotions or themes.
Length and Mobile OptimizationKeep subject lines concise and mobile-friendly to ensure they display effectively on all devices.

How Long Should Your Marketing Emails Be? You Might be Surprised

Measuring Email Marketing Success

Effectively measuring the success of your email marketing campaigns is crucial for continuous improvement. Here are key metrics to monitor:

  • Open Rate: Track how many recipients open your emails, indicating initial engagement.
  • Click-Through Rate (CTR): Measure the percentage of recipients who clicked on links within your email.
  • Conversion Rate: Determine the percentage of email recipients who completed the desired action, such as making a purchase.
  • Bounce Rate: Monitor the rate at which emails couldn’t be delivered due to invalid addresses or other issues.
  • Unsubscribe Rate: Keep an eye on the number of recipients who opt out of your email list.
  • Email List Growth Rate: Assess the rate at which your email list is expanding.
  • ROI (Return on Investment): Calculate the overall return on investment for your email marketing efforts.
  • Email Client and Device Analytics: Understand how recipients access and view your emails across various devices and email clients.
  • A/B Test Results: Analyze the outcomes of A/B tests to refine your email content and strategies.
  • Customer Lifetime Value (CLV): Evaluate the long-term value of customers acquired through email marketing.
  • Spam Complaint Rate: Monitor the frequency of recipients marking your emails as spam.

How Long Should Your Marketing Emails Be? You Might be Surprised

Ensuring Email Deliverability

Email deliverability is critical for your email marketing success. Follow these tips to improve deliverability rates:

  • Use a Reputable Email Service Provider: Choose a trusted email service provider (ESP) known for high deliverability rates.
  • Authenticate Your Domain: Implement SPF, DKIM, and DMARC authentication to verify your domain’s legitimacy.
  • Maintain a Clean Email List: Regularly remove inactive or bounced email addresses from your list.
  • Optimize Subject Lines: Avoid using spammy words or excessive punctuation in subject lines.
  • Personalize Your Emails: Address recipients by name and segment your list for more relevant content.
  • Avoid Spam Traps: Be cautious about purchased email lists and sending emails to addresses with no permission.
  • Provide Unsubscribe Options: Make it easy for recipients to unsubscribe, reducing the likelihood of spam complaints.
  • Monitor Engagement: Pay attention to open and click rates, as ISPs consider engagement when delivering emails.
  • Avoid Overloading Images: Balance text and images in your emails to prevent spam triggers.
  • Test Before Sending: Use email testing tools to check your emails’ deliverability and appearance in various email clients.
  • Monitor Blacklists: Keep an eye on email blacklists and address any issues promptly.
  • Follow Legal Regulations: Comply with CAN-SPAM or GDPR regulations, depending on your audience.

How Long Should Your Marketing Emails Be? You Might be Surprised

Segmenting Your Email List Effectively

Segmenting your email list is a powerful strategy to boost engagement and conversion rates. Here’s how to effectively segment your email list:

  • Demographics: Segment by age, gender, location, and other demographic factors to send personalized content.
  • Behavior: Analyze subscriber behavior such as past purchases, website visits, and interaction with previous emails to tailor messages.
  • Preferences: Allow subscribers to choose their email preferences, such as content type or frequency.
  • Engagement Level: Segment based on engagement, separating active subscribers from less engaged ones.
  • Purchase History: Send targeted offers and recommendations based on what customers have bought before.
  • Lifecycle Stage: Tailor messages for new subscribers, loyal customers, or those at different stages of the customer journey.
  • Abandoned Carts: Target users who abandoned shopping carts with reminder emails and enticing offers.
  • Email Activity: Segment by open and click behavior to send re-engagement campaigns to less active subscribers.

Conclusion

Effective email marketing can be a game-changer for small businesses seeking to attract and retain clients. Constant Contact’s research highlights the importance of striking the right balance in email content to maximize click-through rates. Tailoring your email content to industry-specific preferences, optimizing subject lines, and measuring campaign success are vital steps in this journey.

However, the art of successful email marketing extends beyond content and subject lines. It encompasses the ability to segment your audience effectively, ensuring that your messages resonate with each recipient. By understanding the unique characteristics and behaviors of your subscribers, you can create highly targeted campaigns that yield impressive results.

Moreover, maintaining email deliverability, adhering to legal regulations, and staying vigilant against spam complaints are critical aspects of a successful email marketing strategy.

In a digital landscape where consumer preferences and behaviors evolve, small businesses that master the art of email marketing and adapt to changing trends will find themselves not only winning more clients but also nurturing lasting relationships that drive growth and success.

Image: Constant Contact


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Lisa Froelings Lisa is a Staff Writer for Small Business Trends focusing on marketing technology, productivity and general small business news. She has a background in business and productivity consulting including experience in human resources working for a major retailer before deciding to build her own business.

5 Reactions
  1. I think it has something to do with people not really having the time to read but is willing to read anything useful. So short and useful should be part of the email marketing rule.

  2. Good content. I agree with you Lisa that frame of email is important and it will vary from industry to industry. I genuinely believe: what really matters in an email campaign is content and time. Another most important thing to take into consideration while setting up an email campaign or promotion is behaviour (click thru rate, open rate etc) If you understand these metrics accurately then you can do a lot of things like segmenting the list which will drastically increase the open rate and click thru rate leading to more sales and customers.

  3. Wow Lisa this research is amazing to me cause I always dreaded writing out huge emails and results being pathetic.. now I know why, I’m making their eyes glaze over and killing the opportunity for them to make a decision

  4. Thank you for this informative article, this will enhance my knowledge in terms of the number of lines and pictures that I will post.

    In this point of view I can be more confident that my blogs will be read by many, mainly because of how your inputs really attracts readers.

    Thanks a lot!

    Cheers,
    Tom

  5. I think it’s interesting that this is focused on lines of text, vs word count. I would be curious how this count varies depending on device. Obviously there will be more line breaks if the email is opened on a mobile device. I admit, that I haven’t done a full read of the report from CC, but this is something that immediately jumped out at me. Regarding the images, I’ve definitely seen the use of images having an impact on CTRs. Also, a big difference depending on the images themselves, and I’ve seen an increase in CTR when emails include animated GIFs.

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