Email Campaigns for Bol.com Sellers

A well-set-up mail campaign is one of the most powerful tools you have as a bol.com seller. While many sellers focus solely on acquiring new customers, they forget that existing customers are a goldmine. With the right email strategy, you increase your number of positive reviews, reduce customer contacts, and build a sustainable relationship with your buyers. In this comprehensive article, you'll learn everything about setting up, automating, and optimizing a mail campaign for your bol.com sales channel.

What is a mail campaign and why is it important?

A mail campaign is a targeted email (or series of emails) that you send automatically or manually to customers after a purchase. For bol.com sellers, it's all about three goals: collecting reviews, sending invoices, and increasing customer satisfaction. The result? A better position in bol.com's search results, fewer returns, and more repeat purchases.

Bol.com weighs reviews heavily in their algorithm. Sellers with more positive reviews get the buy block more often and appear higher in search results. A strategic mail campaign is therefore not a luxury, but a necessity for every serious seller.

Benefits of a mail campaign at a glance

• More positive reviews - Customers who receive a friendly reminder leave a review up to 3 times more often.
• Fewer negative reviews - By proactively contacting customers, you can solve problems before they lead to a negative review.
• Lower return rates - Clear product information and usage tips in your email reduce the number of returns.
• Professional appearance - An invoice and thank-you email give your brand a reliable and professional appearance.
• Automated invoicing - Combine your mail campaign with automated invoicing to save time.

Types of mail campaigns for bol.com sellers

Not every mail campaign has the same goal. Below, you'll find an overview of the most effective campaign types for bol.com sellers, including when to use them.

Campaign type	Goal	When to send	Expected result
Review request	More positive reviews	5–7 days after delivery	+15–30% review conversion
Invoice email	Professionalism & compliance	Immediately after shipping	Fewer customer questions about invoices
Thank-you email	Customer loyalty	1–2 days after delivery	Higher customer satisfaction
Product tips	Adding value	3–5 days after delivery	Fewer returns, more loyalty
Problem prevention	Reducing returns	1 day after delivery	-10–20% return rate

How to set up an effective mail campaign

Setting up a successful mail campaign starts with a clear plan. Below, we'll go through the process step by step, from strategy to implementation.

Step 1: Determine your goal

Before you start writing emails, you need to be clear about what you want to achieve. Do you want more reviews? Fewer customer contacts? Higher customer satisfaction? Each goal requires a different approach, tone, and timing. Most bol.com sellers start with a review request campaign, as it has a direct impact on your visibility and sales figures.

Step 2: Choose your timing

Timing is crucial in an email campaign. If you send your email too early, the customer may not have received or used the product yet. If you send it too late, the enthusiasm will have disappeared. For review requests, 5 to 7 days after delivery is ideal. For invoice emails, sending them directly after shipping is the best choice. Experiment with different moments and measure which timing yields the highest open and conversion rate.

Step 3: Write convincing content

The content of your email should be short, personal, and valuable. Avoid long blocks of text and focus on one clear call-to-action. Use the product name and address the customer personally. A good review request includes:

• A thank you for the purchase
• A brief question about whether everything is to their liking
• A direct link to the review page
• Contact information for any problems

Step 4: Automate your campaigns

Manually sending emails is unsustainable once you have more than a handful of orders per day. Use a tool like the E-mail Campagnes feature of Boloo to fully automate your email campaigns. Set up your campaign once, choose your template and trigger, and the rest will happen automatically. This way, you'll save hours per week while your results continue to grow.

Best practices for bol.com email campaigns

Setting up an email campaign is one thing - optimizing it is another. With these proven best practices, you'll get the most out of your email strategy.

Personalization is key

Use the product name, order number, and customer name in your emails. Personalized emails have an average 26% higher open rate than generic messages. The more personal your email feels, the greater the chance that the customer will take action.

Keep it short and scannable

The average reading time of a transactional email is less than 15 seconds. Make sure your main message and call-to-action are visible within that time. Use short paragraphs, bullet points, and a clear button.

Test and optimize continuously

Use A/B tests to compare different subject lines, sending times, and email content. Small adjustments can have a big impact. A different subject line can increase your open rate by 10-15%. Monitor your results and adjust your strategy based on data.

Respect the customer

Don't send too many emails. One to a maximum of two messages per order is sufficient. Excessive emailing leads to irritation and can even lead to complaints with bol.com. Always provide a clear opt-out option and respect your customers' wishes.

Email campaign statistics and benchmarks

To evaluate whether your email campaign is performing well, it's helpful to compare your results with industry benchmarks. Below, you'll find the most important KPIs for e-commerce email campaigns in the Benelux.

KPI	Benchmark e-commerce	Good result	Excellent result
Open rate	35–45%	50%	60%+
Click-through rate (CTR)	3–5%	7%	10%+
Review conversion	5–10%	15%	25%+
Unsubscribe rate	<0,5%	<0,3%	<0,1%
Bounce rate	<2%	<1%	<0,5%

Transactional emails (like invoice and review emails) generally perform better than promotional emails because customers expect and find them more relevant. With Boloo's E-mail Campagnes, you can monitor all these statistics in real-time and optimize your campaigns.

Common mistakes in email campaigns

Many bol.com sellers make the same mistakes when setting up their first email campaign. Do you recognize any of the pitfalls below? Then it's time to adjust your strategy.

• Sending too late - A review request after 3 weeks has little effect. Stick to the 5-7 day rule.
• No personalization - "Dear customer" feels impersonal. Always use the product name and possibly the customer's name.
• Too many emails - More than two emails per order is too much and counterproductive.
• No clear CTA - If the customer doesn't know what you expect from them, nothing happens. One clear button per email.
• Poor mobile display - More than 60% of emails are opened on mobile. Test your templates on different devices.
• No follow-up on issues - If you ask a customer for feedback and they report an issue, make sure you respond quickly. If you ignore it, it will still become a negative review.

Automating email campaigns with Boloo

Manually managing email campaigns is time-consuming and prone to errors. With Boloo's E-mail Campagnes feature, you automate the entire process. Here's how it works:

• Choose templates - Select from professional email templates specifically designed for bol.com sellers.
• Set triggers - Determine when an email is sent: after shipping, after delivery, or after a certain number of days.
• Automatically attach invoices - Combine your email campaign with automatic invoicing so customers receive their invoice directly.
• Monitor results - See in real-time how your campaigns are performing: open rates, clicks, review conversions, and more.
• A/B testing - Test different subject lines and content to continuously improve.

By automating your email campaign, you not only save time but also increase consistency. Every customer receives the right message at the right time, without you having to look at it.

Legal aspects of email campaigns

When sending emails to customers, you need to consider the GDPR (General Data Protection Regulation) and the Telecommunications Act. Fortunately, transactional emails - such as invoice emails and review requests that are directly related to a purchase - fall under an exception. You don't need to ask for explicit consent, as long as the email is directly related to the transaction.

Be sure to note the following:

• Send only emails related to the order
• Don't add promotional content without permission
• Don't store customer data longer than necessary
• Always offer an opt-out option

Impact of reviews on your bol.com performance

Why is a good email campaign so important for your reviews? Because reviews have a direct impact on almost every aspect of your bol.com performance. Sellers with a high review score get the buy block more often, appear higher in search results, and enjoy more trust from potential buyers.

Number of reviews	Average effect on conversion	Impact on buy block
0–5 reviews	Baseline	Low
5–20 reviews	+10–15% conversion	Average
20–50 reviews	+20–30% conversion	High
50+ reviews	+30–50% conversion	Very high

With an automated email campaign, you can collect dozens of reviews in a short time. This creates a snowball effect: more reviews → more trust → more sales → more reviews. Use the Sales Dashboard to track the impact of your campaigns on your revenue.

Conclusion

A well-set-up email campaign is essential for every bol.com seller who wants to grow seriously. Whether you want to collect more reviews, increase customer satisfaction, or reduce your return rate - email is the answer. Start with a simple review request campaign, automate the process with Boloo Email Campaigns, and build from there. Track your results, optimize continuously, and see how your reviews - and your revenue - grow steadily. The sellers who invest in their email strategy today will be the winners of tomorrow on bol.com.