Setting Up a Customized Welcome Email Series with Mailchimp and Sendinblue involves sending planned, personalized, and measurable emails to users who subscribe to your website, starting from the moment they register. The ideal sequence typically includes: 1. a welcome email delivering the promised content, 2. establishing brand trust in the second email, 3. providing value or guidance in the third email, and 4. a call to action for conversion in the fourth email. Mailchimp and Sendinblue allow you to create forms, lists, segments, triggers, and automation workflows with minimal technical knowledge.
When a visitor leaves their email address, their interest is at its peak. Therefore, a welcome series is more strategic than one-off newsletters. Best practices based on experience suggest that the first email should be sent within the first 0-5 minutes, while subsequent emails should be scheduled at intervals of 1, 2, or 4 days. This simple timing ensures that the new subscriber remembers your brand, understands the value you offer, and moves closer to objectives like making a purchase or filling out a contact form.
In this guide, we will go through the steps to set up a customized automated welcome email series through Mailchimp and Sendinblue, now known as Brevo. We will also cover practical details such as proper form placement, domain email verification, content planning, measurement, compliance with data protection laws, and deliverability. If your website does not yet have a fast and reliable infrastructure, it’s crucial to strengthen your performance and security before diving into email marketing: Hostragons Web Hosting Packages, Domain Registration, SSL Certificate.
What is an Automated Welcome Email Series?
An automated welcome email series is a chain of emails that starts automatically after a user takes an action on your website, such as subscribing to a form, creating an account, downloading a free guide, requesting a demo, or signing up for a newsletter. This chain works according to specific rules: data such as which form the user came from, what tag they received, which page they visited, whether they opened the email, and whether they clicked on a link shapes the flow.
For example, a business offering WordPress hosting might send a free website setup checklist in the first email to users who subscribed to their newsletter. The second email could explain the technical criteria for choosing fast hosting. The third email could cover topics like SSL, backups, and security. In the fourth email, the user could be invited to explore a suitable hosting package according to their needs. This way, trust is built without creating sales pressure.
Why Should You Set Up a Series Instead of Just One Welcome Email?
A single welcome email only provides initial engagement; a series builds a relationship with the user. New subscribers are not yet fully familiar with your brand. Trying to convey who you are, provide value, promote a product, and request conversion in one email can often be overwhelming. A series approach breaks the messages into digestible parts.
- Provides better timing: The first email is sent immediately, and the following messages progress without overwhelming the user.
- Allows for personalization: You can offer different content based on interests, forms, or tags.
- Builds trust: References, usage examples, and helpful guides are shared gradually.
- Makes conversion measurable: Open rates, click-through rates, unsubscribes, and sales data can be analyzed individually.
- Reduces the burden on the sales team: Frequently asked questions are answered automatically, generating qualified leads.
To make a practical comparison, on an e-commerce site, the first email delivers a discount code; the second email shows the best-selling categories; the third email shares customer reviews; and the fourth email reminds users about their cart or first purchase. In service companies, the first email might deliver resources, the second email provides evidence of expertise, the third email could be a case study, and the fourth email could be a call for consultation.
Comparison of Mailchimp and Sendinblue
Mailchimp and Sendinblue are powerful email automation tools for small and medium-sized businesses. Mailchimp stands out with its design templates, campaign interface, and marketing ecosystem. Sendinblue, now continuing as Brevo, offers practical solutions for email, SMS, transactional emails, and CRM. When making a choice, consider not only the price but also the size of your list, the number of emails you plan to send, the complexity of automation, and integration needs.
| Criteria | Mailchimp | Sendinblue / Brevo |
|---|---|---|
| Ease of Use | Visual editor and pre-made templates are strong for beginners. | The interface is simple, and the logic for creating automation is clear. |
| Automation | Offers welcome series, segments, and customer journey flows. | Conditional flows are suitable for combinations of email and SMS. |
| Pricing Approach | Typically focused on the number of contacts per list. | In most scenarios, daily or monthly sending volume could be more significant. |
| Design | Rich email templates and drag-and-drop editing are advantageous. | Offers clean templates and quick editing options. |
| Who is it Suitable For? | Blogs, e-commerce, small businesses, and content-focused brands. | SMEs, service businesses, and teams wanting to use CRM and SMS. |
In summary, if visual campaign management and a wide integration ecosystem are your priorities, Mailchimp is a good starting point. If you want to manage email, SMS, CRM, and transactional emails from a single panel, Sendinblue may be more suitable. In both tools, the key factor for success is the automation strategy you establish.
Preparation Checklist Before Starting Setup
Before transitioning to an automation tool, several fundamental preparations must be completed. Skipping this stage can lead to issues like low delivery rates, a confusing list structure, or weak conversions down the line.
1. Clarify Your Goal
The purpose of the welcome series should be written in a single sentence. For example: converting new subscribers from blog readers to potential customers, encouraging the first purchase, turning free trial users into active customers, or making someone who signed up for a training series a webinar participant. If the goal is unclear, the email content will become scattered.
2. Identify the Subscription Source
Your subscribers can come from an in-blog form, a pop-up window, a contact page, a post-purchase checkbox, or a dedicated campaign landing page. Each source generates different expectations. Instead of immediately selling a product to someone who downloaded a free e-book, it’s better to first deliver the guide and provide relevant additional resources.
3. Prepare Your Domain and Sender Email
For a professional appearance, your sender address should come from your own domain rather than a free email service. For example, addresses like info@yourbrand.com or hello@yourbrand.com provide trust. If you don’t have a domain, you should first acquire one suitable for your brand name: How to Choose a Suitable Domain Name. A reliable hosting infrastructure is also essential for corporate email accounts and DNS settings: Corporate Email Hosting.
4. Plan SPF, DKIM, and DMARC Records
Technical verifications are critical for email deliverability. SPF specifies which servers can send emails on behalf of your domain. DKIM verifies that the message has not been altered during transmission with a signature. DMARC tells recipient servers how to act based on SPF and DKIM results. Mailchimp and Sendinblue will provide you with specific DNS records; you need to add these to your domain DNS management panel. For additional guidance on DNS management: What are DNS Records and How to Manage Them.
5. Organize GDPR Compliance and Opt-in Process
In Turkey, explicit consent, informative text, and the possibility to unsubscribe are crucial for processing personal data and sending commercial electronic communications. Make sure to clearly state what the user is subscribing to on your form. Provide a link to your privacy policy. Ensure that every email includes an unsubscribe link. This is necessary not only for legal compliance but also for list quality.
Setting Up an Automated Welcome Email Series with Mailchimp
The basic logic on Mailchimp’s side involves creating an audience, connecting the form, setting up a customer journey or automation flow, preparing email content, and launching it. The following steps provide a simplified implementation plan for beginners.
Step 1: Create Audience and Tag Structure
Create your main list in the Audience section of the Mailchimp panel. Use tags to avoid mixing up the individuals coming to your list. For example, tags like blog-subscriber, e-book-downloader, demo-requester, or potential-customer will make it easier to create segments later. Instead of creating too many tags at the beginning, 4-6 basic tags will suffice.
Step 2: Add the Registration Form to Your Website
You can obtain an embeddable form code using Mailchimp’s form builder, or if you are using WordPress, you can integrate it with a compatible plugin. Keep the form fields short. At this stage, name and email are sufficient for most scenarios. Asking for phone numbers, company names, and budget information right away can lower conversion rates. You can test the form within a blog post, in the sidebar, in an exit intent pop-up, or on a landing page.
Step 3: Initiate Customer Journey or Automation
You can select a new signup to the list, registration from a specific form, or the addition of a specific tag as the automation trigger. For example, if a user came from the e-book form, the e-book-downloader tag is added, and the welcome series starts based on this tag. This method allows you to create different flows for different audiences.
Step 4: Plan the Email Sequence
A series of 4 emails is sufficient to start. The 1st email is sent immediately, delivering the promised content. The 2nd email, sent one day later, introduces your brand and explains how you can help the user. The 3rd email, sent three days later, provides a guide, checklist, video, or case study. The 4th email, sent 5-7 days later, makes a clear but gentle call to action: explore the package, get a quote, schedule a demo, or read the blog guide.
Step 5: Add Conditional Branches
In Mailchimp, you can direct those who open the email and click on the link to different paths. For example, users who click on the hosting guide in the 2nd email could receive content about WordPress speed optimization. Those who do not click could receive a different reminder with a different subject line. This branching prevents everyone from receiving the same messages and helps maintain interest.
Step 6: Test and Launch
Before launching, send a test email. Check the mobile view, links, image sizes, personalization fields, and the unsubscribe link. Testing the appearance in Gmail, Outlook, and mobile email apps yields good results. When the first 100 subscribers come in, examine the open and click rates, then refine the subject lines and CTA texts.
Setting Up an Automated Welcome Email Series with Sendinblue
Sendinblue, or Brevo, offers a simple yet powerful structure for automation. It works with lists, forms, scenarios, and templates. Since SMS or CRM tasks can also be added alongside email, it’s especially useful for service businesses.
Step 1: Create List and Contact Fields
Create your list in the Contacts section of the Brevo panel. Then define contact fields such as name, industry, interests, and subscription source. If you have a B2B website, company name and website fields can be beneficial; however, to avoid extending the form, it’s healthier to collect some information in later emails or through the CRM process.
Step 2: Design the Subscription Form
In Brevo’s form builder, you can edit the title, description, fields, consent checkbox, and thank-you message. The form text should be clear: Subscribe to receive weekly website, hosting, and digital marketing tips. When users know what they will receive, the complaint rate drops.
Step 3: Initiate the Automation Scenario
Create a new workflow from the Automation section. Choose adding a person to a specific list as the starting condition. Then add the first message with the Send an email action. Use the Wait for option for waiting steps. For example, wait for 1 day after the first email, send the second email, wait for 2 days, and send the third email.
Step 4: Add Rules Based on Behavior
In Brevo, you can move someone who clicks on a link to a separate list, create a task for the sales team, or send a different email. For instance, it makes sense to send a security-focused follow-up email to a user who clicked on the SSL guide: What is SSL Certificate. This way, the automated welcome email series becomes not just a greeting but a tool for understanding user intent.
Step 5: Optimize Sending Times
The first email should be sent immediately after a new subscription. For other emails, you can test sending in the morning between 9:00-11:00 or in the afternoon between 14:00-16:00 based on your target audience. For B2B audiences, weekdays may perform better, while evening hours may yield results for e-commerce audiences. For the most accurate results, monitor your own data over 2-4 weeks.
Example 5-Email Welcome Series Template

The example below can be adapted for a website service, hosting company, agency, SaaS, or a business selling information products. Ensure each email has a single main goal.
| Order | Timing | Purpose | Example Subject Line | CTA |
|---|---|---|---|---|
| 1 | Immediately | Welcome and deliver the promised content | Welcome to our community, your guide is here | Download the guide |
| 2 | 1 day later | Introduce the brand and build expectations | How can we help you? | See the most helpful resources |
| 3 | 3 days later | Provide educational value | 7 essential steps to speed up your website | Check the checklist |
| 4 | 5 days later | Share proof of trust | Why do customers start with the right infrastructure? | Read the sample scenario |
| 5 | 7 days later | Call for conversion | Let’s choose the right solution for your site together | Explore packages |
If you want to modify this flow for e-commerce, you could use a discount code in the first email, popular products in the second email, reviews in the third email, usage tips in the fourth email, and a limited-time offer in the fifth email. For a blog or content site, topic series, best articles, and community invitations would be more appropriate.
Content Writing: Subject Line, Preview, and CTA Tips
Just as technical setup is important, so is the quality of the text. The goal of welcome emails is not to overwhelm the subscriber but to guide them to the next logical step. The subject line should be clear, within 35-55 characters. The preview text should not repeat the subject line but should add curiosity or value. The CTA button should be singular and visible.
- Use personalization: If possible, add the name field; however, use fallback text that won’t look strange if the data is empty.
- Provide one main message in an email: Too many links can distract clicks.
- Limit image sizes: Heavy images can slow loading times and increase spam risk.
- Reduce sales pressure: Focus on building value and trust in the first two emails.
- Write mobile-first: Use short paragraphs, clear headings, and large buttons.
Example CTA texts: Download the guide, Compare packages, Open the checklist, Request a free consultation, Verify the domain. In technical service brands like Hostragons, providing content based on the user's knowledge level is effective. While explaining the difference between domains and hosting to a beginner user, more experienced users could receive details about LiteSpeed, backups, or SSL: Difference Between Domain and Hosting, WordPress hosting guide.
Improving Deliverability and Reducing Spam Risk
If your emails are not landing in the inbox, having a well-written automation is not enough. Deliverability is assessed together with domain reputation, IP reputation, user engagement, technical verifications, and content quality. Instead of sending thousands of emails all at once from a new sender domain, it is healthier to warm up gradually.
- Add SPF, DKIM, and DMARC records completely.
- Do not use purchased email lists; this is risky both legally and technically.
- Regularly clean up passive subscribers.
- Avoid excessive exclamation marks, all caps, and misleading subject lines.
- Include an unsubscribe link in every email.
- Consistently use the sender name; for example, Hostragons Team.
Additionally, ensuring that your website appears trustworthy also affects conversions. Subscription forms from sites that lack SSL, load slowly, or often have errors can create trust issues for users. Fast hosting, an updated CMS, a secure form structure, and an SSL certificate are therefore the unseen foundations of email marketing: Website Speed Optimization, How to Install SSL.
Metrics to Track for Measuring Success
Once your automated welcome email series is set up, you should collect data for at least 2-4 weeks. Making hasty decisions based on the first few sends can be misleading. When measuring, don’t look only at the open rate; factors like Apple Mail Privacy Protection can affect open data. Click-through, conversion, and unsubscribe metrics are more meaningful.
- Delivery rate: Shows how many of the sent emails reached the recipient server.
- Open rate: Provides insight into the subject line and sender trust.
- Click-through rate: Indicates whether the content and CTA are engaging.
- Conversion rate: Measures targets like purchases, form completions, demo requests, or file downloads.
- Unsubscribe rate: Alerts you about content frequency or expectation alignment.
- Spam complaints: A critical signal for assessing list quality and the opt-in process.
An actionable optimization plan could look like this: In the first month, test only the subject lines. In the second month, change the CTA texts. In the third month, compare the email sequence and wait times. By using a single variable in each test, you can clearly understand which improvement yielded results.
Common Mistakes and Professional Solutions
The most frequent mistake is sending aggressive sales messages as soon as a user subscribes. New subscribers first want to see why they should trust you. The second mistake is sending the same series to all subscribers. The intent of someone coming from a blog is not the same as that of someone coming from a price quote form. The third mistake is launching a campaign without completing technical verifications.
- Mistake: Asking for too many fields in the form. Solution: Start with just name and email at the initial stage.
- Mistake: Using multiple goals in each email. Solution: Define a single CTA for each message.
- Mistake: Setting up the email series and not checking it for months. Solution: Create a monthly performance report.
- Mistake: Not testing the mobile view. Solution: Design all templates with mobile-first in mind.
- Mistake: Leaving DNS verifications incomplete. Solution: Check SPF, DKIM, and DMARC records.
Healthier Email Marketing with Hostragons Infrastructure
Email automation often seems to start in the Mailchimp or Sendinblue panel; however, a significant part of the success is prepared in the website infrastructure. Fast-loading pages facilitate more form submissions. A reliable domain name and SSL certificate enhance user trust. Proper DNS management simplifies sender verification. A corporate email address strengthens your brand’s professional perception.
Therefore, when planning your automated welcome email series, also review the fundamental building blocks of your website. Is your domain aligned with your brand? Is SSL active? Do the forms work smoothly on mobile? Does the hosting performance support the speed of your landing page? If your answers to these questions are positive, the automation you will set up with Mailchimp and Sendinblue will work more efficiently.
Frequently Asked Questions
Is it difficult to set up an automated welcome email series with Mailchimp and Sendinblue?
No. For a basic series, it’s sufficient to create a list, connect the form, select a starting trigger, and add 3-5 emails. The challenge lies more in strategy, segmentation, and content planning.
How many emails should a welcome series consist of?
Starting with 3-5 emails is ideal. The first email can be sent immediately, while the others can be sent at intervals of 1-3 days. Longer series can be used in training, SaaS, or services that require a longer decision-making process.
Which is better, Mailchimp or Sendinblue?
If visual templates and extensive integrations are your priorities, Mailchimp is advantageous. If you want to manage email, SMS, CRM, and transactional messages together, Sendinblue (Brevo) may be more suitable.
Is it necessary to use a corporate email address?
Yes, it’s recommended. A corporate email address created with your domain conveys trust and strengthens brand perception. Also, deliverability is better managed with verifications like SPF, DKIM, and DMARC.
Is it essential to offer discounts in welcome emails?
No. Discounts can be effective in e-commerce; however, in service, B2B, or content-focused sites, providing guides, checklists, training videos, case studies, or free consultation invitations may be more appropriate.
In summary: Setting up a customized automated welcome email series with Mailchimp and Sendinblue is one of the most practical ways to engage new subscribers in a conscious and measurable journey. When the right form, clean list, technical verifications, valuable content, and regular measurement come together, the series becomes not just a welcome message but a sustainable conversion channel. If you want to strengthen your website’s domain, hosting, SSL, and email infrastructure, you can take a solid start by exploring Hostragons solutions.