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Brevo (formerly Sendinblue) is an email marketing platform that also includes SMS, WhatsApp campaigns, and a built-in CRM. If you need more than just newsletters, Brevo bundles several communication channels into one tool.
Do you actually need Brevo? Macaly has a built-in database and email notifications. If you just need a contact form or waitlist, you don’t need an external tool. Brevo is worth it when you need newsletters, automated sequences, SMS campaigns, or a CRM to manage your contacts.

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Why use Brevo

  • Send newsletters and marketing emails. Use the drag-and-drop editor or HTML templates without touching code.
  • Automate your follow-ups. Build welcome series, abandoned cart emails, and re-engagement campaigns that run on their own.
  • Reach people across channels. Send email, SMS, and WhatsApp campaigns from the same platform.
  • Manage contacts without a separate CRM. Track deals and segment your audience all in one place.

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What you need

Before you start, make sure you have:
  • A Brevo account. Create one for free at brevo.com
  • A contact list in Brevo to collect subscribers into
There are two ways to connect Brevo to your site:
  • Embedded signup form. Paste Brevo’s generated form code into your site. Best for simple email collection.
  • Brevo API. Connect your forms to Brevo’s API for full control over what data you send. Best when you want custom forms that match your design.

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Option 1: Embedded signup form

The simplest approach. Brevo generates a form you can embed on your site.
1

Get your form embed code

In Brevo, go to Contacts then Forms. Create a new subscription form (or use an existing one), customize it, then copy the embed code.
2

Ask the agent to add it

Open the chat in your Macaly project and ask:
Add this Brevo signup form to my site. Here's the embed code:

[paste your Brevo embed code here]
3

The agent places the form

The agent adds the form to your project. Tell it where you want it: footer, sidebar, dedicated page, or a popup.
If you want the form to match your site’s design, tell the agent: “Style the Brevo form to match the rest of my site.”

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Option 2: Custom form with Brevo API

For more control, the agent can build a custom form that sends subscribers to Brevo through their API.
1

Add your Brevo credentials to Secrets

Go to Settings then Secrets in your Macaly project. Add two secrets:
  • BREVO_API_KEY — your Brevo API key
  • BREVO_LIST_ID — the contact list you want subscribers added to
API key:
  1. In Brevo, click your name in the top right, then SMTP & API
  2. Go to the API Keys tab
  3. Click Generate a new API key and copy it
List ID:
  1. Go to Contacts then Lists
  2. Click the list you want to use
  3. Your List ID is shown in the URL and in the list details
2

Ask the agent to build the form

Open the chat and ask:
Create a newsletter signup form in the footer. When someone subscribes,
add them to my Brevo contact list using the API.
I've added my API key and list ID to Secrets.
Never paste API keys directly into the chat. Always use Settings then Secrets to store sensitive credentials. The agent can read them from there securely.

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Verify it’s working

1

Submit a test signup

Visit your site and enter a test email address in the signup form.
2

Check your Brevo contacts

Go to Contacts in Brevo. Your test email should appear in the list you connected.

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Good to know

  • If you only need to collect emails, Macaly’s built-in database is simpler and doesn’t require an external account
  • For GDPR compliance, enable double opt-in in your Brevo form settings
  • Brevo’s API can also send transactional emails (order confirmations, password resets). Ask the agent if you need those too