CRM
08 Jul 2026

The 5 Steps to Running a Successful Email Campaign

Salomé Boukobza
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Head of CRM
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10 min
Les 5 étapes pour réussir votre campagne emailing
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Email marketing is essential to any marketing strategy. To maximize the effectiveness of your campaigns, you need to plan and execute them strategically. This guide walks you through five key steps to building a successful email campaign: from defining your goals to analyzing your results.

A well-crafted campaign can boost your visibility, retain your customers, and drive higher engagement and conversion rates. It's important to move away from "mass emailing" in favor of a personalized approach. Tools like Brevo (formerly Sendinblue) and Klaviyo make it easier to create targeted campaigns that truly resonate with your audience. We'll cover how to choose and segment your audience, write compelling content, optimize design and deliverability, and test your campaign to ensure its success.

Step 1: Define Your Campaign Goals

Set clear objectives

Before launching your email campaign, it's important to establish precise objectives. These should be SMART: Specific, Measurable, Achievable, Relevant, and Time-bound. In other words, you need to be able to quantify them and evaluate them by a set deadline.

For example, if increasing sales is your aim, a goal might be to achieve 15% growth in email-driven sales within three months of the campaign. Goals can vary: acquiring qualified leads, increasing subscriber engagement, or building customer loyalty. It's essential to focus your efforts on one primary objective, along with a few secondary ones if needed, to maintain a clear and focused direction.

This will help you stay consistent and on track.

Choose relevant success metrics

Once you've defined your goals, select key performance indicators (KPIs) suited to measuring your campaign's success. Common KPIs in email marketing include deliverability rate, open rate, click-through rate (CTR), and unsubscribe rate.

Deliverability rate shows the proportion of emails successfully received by recipients, reflecting the quality of your contact list and your opt-in process. Open rate reveals the percentage of recipients who opened the email, indicating how effective your subject line and timing are. CTR is a key indicator of campaign success, reflecting the number of clicks on links within your emails and proving the relevance and appeal of your content. By integrating lead nurturing strategies into your approach, you can turn these interactions into lasting and profitable customer relationships.

By monitoring these KPIs, you'll be able to adjust and optimize your email strategy to better reach your goals.

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Step 2: Segment and Choose Your Audience

Segmentation based on behavior and demographics

Segmenting your contact list is essential to ensuring the effectiveness of your email campaigns. Segmentation can be done in several ways, but focusing on the behavior and demographics of your contacts is particularly effective.

Behavioral segmentation divides your list based on past actions from your contacts, such as recent purchases, email opens, or clicks on specific links. This approach lets you personalize your emails to better match the interests of each group, thereby improving open and click-through rates.

Demographic segmentation uses criteria like age, gender, income, or location to tailor your messages. For example, a travel company might target young adults with adventure offers and seniors with relaxing cruises. This ensures your emails are relevant and compelling for each segment of your audience.

By adopting these segmentation strategies, you'll make your email marketing campaigns more targeted and engaging, resulting in better conversion rates and improved customer satisfaction.

The importance of an up-to-date database

Maintaining an up-to-date database is essential to the success of your email campaigns. A clean, current database increases your email deliverability rate, reducing the risk of your messages ending up in spam or being rejected. This typically leads to better open and click-through rates.

In addition, an updated database allows you to further personalize your communications, creating content that truly resonates with your recipients. 

This strengthens the bond between your brand and your customers, optimizes engagement, and reduces costs, since each email sent has a greater chance of generating a positive return on investment. Working with a competent CRM agency can help you maintain and effectively leverage this database for greater campaign impact.

Finally, a high-quality database protects your domain's reputation, reduces the risk of being flagged as spam, and builds trust with email service providers. It also makes it easier to analyze and adjust your future strategies, making your key performance indicators more meaningful.

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Step 3: Write Engaging Content

Keys to an effective email subject line

Your email subject line is often the first impression recipients have, and it plays a decisive role in whether they choose to open it. For a subject line to be effective, it needs to be brief, compelling, and relevant. Choose keywords that capture the essence of your message, and avoid overusing special characters or all caps, which can come across as spam.

A subject like "Discover our exclusive spring offers!" is more inviting than "EXCLUSIVE DEALS - DON'T MISS THIS!". Also personalize the subject line based on your target audience.

If you have data on your subscribers' preferences or behaviors, use it to make each subject line more relevant and enticing.

Creating personalized content and message relevance

Your email content must not only capture attention but also be personalized and relevant to your audience. Personalization is essential for boosting engagement and conversions.

Tailor your message to the interests, behaviors, and preferences of your subscribers, drawing on data collected with a CRM. For example, for a loyalty campaign, offer product recommendations based on the customer's previous purchases. For new subscribers, provide welcome content that familiarizes them with your products or services.

Make sure your message is direct and concise. Favor shorter formats and use headings, bullet points, and images to facilitate reading and make the content visually appealing.

Including clear calls to action

Calls to action (CTAs) are essential for guiding your recipients toward the desired goal. 

A precise and engaging CTA can significantly improve click-through and conversion rates. Go for immediate and urgent action verbs, such as "Shop now," "Sign up today," or "Learn more."

These terms motivate readers to act right away, creating a sense of urgency that drives clicks. Position your CTAs strategically, ideally at the top and center of the email, so they're immediately visible without scrolling.

Choose colors that contrast with the rest of the content to instantly catch the eye. Finally, stick to one primary CTA per email, with the option of adding a less prominent secondary CTA if needed, to avoid confusing readers and clearly indicate the action to take.

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Step 4: Optimize Design and Deliverability

Responsive design: adapting to all devices

Responsive design is essential to ensuring your emails are visible and usable across different devices, such as smartphones, tablets, and computers. This approach uses fluid grids and media queries to automatically adjust the layout, images, text size, and CTA buttons based on the recipient's screen size. With media queries, you can apply different styles depending on screen width.

For example, you can define a layout and font sizes tailored to smaller screens to avoid horizontal scrolling and poorly sized elements. This lets you create an optimized mobile version without needing to design two separate templates, though that option remains available for advanced customization.

By adopting responsive design, you ensure easy reading and navigation of your email regardless of the device or operating system. This approach improves user experience and increases engagement rates, allowing users to access and read your content without formatting constraints.

Best practices to ensure deliverability

To make sure your emails land in inboxes rather than spam folders, it's advisable to follow certain practices. First, keep your database clean and up to date. Remove invalid or inactive email addresses that can hurt your sender reputation and lower your deliverability rates. Use email authentication methods such as SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance) to certify the authenticity of your emails and fight phishing and spoofing.

Avoid keywords and phrases likely to trigger spam filters, such as "Buy now" or "Exclusive offer." 

Prioritize natural, relevant content that engages your audience without feeling forced. Finally, test your emails across various email clients and devices before sending.

This will help you identify and fix any formatting or deliverability issues before they affect your campaign. By adopting these practices, you'll significantly improve the deliverability of your emails and the overall effectiveness of your campaigns.

Step 5: Planning and Testing

Choosing the best time to send emails

The timing of your email sends is a key factor in optimizing engagement and campaign performance. Studies show that certain times of day and days of the week are more conducive to email reception.

For B2B campaigns, the most effective windows are during business hours, especially from 9–11 a.m., 1–2 p.m., and 4–5 p.m. For B2C, consider sending your emails on weekends or in the evenings, when consumers have more time to check their personal inboxes.

Tuesdays and Thursdays tend to be the most opportune days, showing higher open and click-through rates. It's advisable to avoid Mondays and Saturdays, where engagement tends to be lower. Also take into account the specific characteristics of your target audience and industry.

For example, B2B professional services companies may see better results sending emails on Monday or Tuesday mornings, while e-commerce players may do better on Tuesday or Thursday at 10 a.m.

The importance of A/B testing to improve effectiveness

A/B testing plays a crucial role in optimizing your email campaigns. It involves sending two versions of an email to similar segments of your mailing list in order to evaluate which performs better. It's a technique that top Brevo agencies frequently use to refine their clients' campaigns and ensure the best possible performance.

You might, for example, experiment with two different subject lines to identify which one generates the most opens, or compare two pieces of content to determine which drives the most clicks. Use an email tool or platform that offers A/B testing features, such as Klaviyo or Brevo, to simplify implementation and result analysis. Make sure to segment your audience equally to obtain reliable data, and let the test run long enough, ideally at least 24 hours, to collect meaningful insights.

Finally, carefully review the results of your A/B tests and adjust your strategies accordingly. This will help you continuously improve the effectiveness of your email campaigns, optimizing both your engagement and conversion rates.

Conclusion

Running a successful email campaign requires careful planning and precise execution. To recap: it's essential to set clear and measurable objectives, segment your audience in a targeted way, craft compelling and personalized content, optimize your emails' design and deliverability, and plan and test your sends to maximize effectiveness. It's also important to choose the optimal send time and apply A/B testing to continuously refine your strategies.

A compelling subject line, clear content, and well-defined calls to action are essential for driving engagement and conversion. By taking this approach and paying attention to every aspect of your campaign, you have the opportunity to significantly improve the performance of your email campaigns and strengthen your relationships with your customers. So don't hesitate to put these recommendations into practice today and see the positive impact on your marketing efforts.

FAQ

How do you run an effective email campaign?

To launch a successful email campaign, start by defining clear, SMART objectives (Specific, Measurable, Achievable, Realistic, Time-bound). Understand your audience by analyzing their needs and preferences.

Then build a quality contact list and segment it to deliver tailored messages. Your content should be relevant and adapted, including reassuring elements and a design that works across all devices.

Drive interaction through well-placed call-to-action (CTA) buttons. Finally, measure the effectiveness of your campaign using key performance indicators and adjust your strategy based on the results.

How do you send 1,000 emails at once?

Sending 1,000 emails simultaneously requires the use of a bulk sending platform such as Mailchimp, Sendinblue, or GetResponse. These services provide tools to manage large subscriber lists and orchestrate large-scale campaigns with automation and performance analytics features.

What is the best email marketing tool?

The best email marketing tool depends on your specific needs. Klaviyo stands out particularly for e-commerce thanks to its advanced automations, precise segmentation, and seamless integrations with platforms like Shopify or WooCommerce.