Mailjet is an email marketing software that lets you send newsletters, follow-up emails, and automated campaigns to your subscribers. By connecting Mailjet with FlexiFunnels, every lead who fills a form on your FlexiFunnels page — or buys your product — can be sent straight into your Mailjet contact lists automatically. No downloading CSV files, no copy-pasting email addresses one by one.
Think of it like this: FlexiFunnels is the shop where people walk in and share their details, and Mailjet is the diary where you keep everyone's contact information. This integration is the assistant who instantly writes every new visitor's details into your diary the moment they walk in — so you never lose a single lead.
To connect the two, Mailjet gives you two "passwords" called the API Key and the Secret Key. You'll generate them inside Mailjet and paste them into FlexiFunnels. That's the whole integration.
What you will need
- A FlexiFunnels account
- A Mailjet account (logged in)
Part 1 — Get your API Key and Secret Key from Mailjet
Step 1. Log in to your Mailjet account at app.mailjet.com.
Step 2. In the Mailjet dashboard, look for the API option (you'll find it in the left-side menu / account settings area).

Step 3. Click on API Key Management. This opens the page where Mailjet stores your account's keys.

Step 4. On this page, your API Key is already visible. Click the Generate Secret Key button to create your Secret Key. A popup will appear showing both keys together

Step 5. Copy both keys somewhere safe (a notepad works fine for now). You'll paste them into FlexiFunnels in the next part.
Part 2 — Connect Mailjet inside FlexiFunnels
Step 1. Log in to your FlexiFunnels account.
Step 2. Click on the gear (⚙️ Settings) icon on the FlexiFunnels dashboard. Then click on Autoresponder Integrations. (See the below screenshot)

Step 3. Click the +Add Autoresponder button to see the list of all supported autoresponders.

Step 4. Choose Mailjet from the list and click on the Connect button.
Step 5. A form will open asking for your credentials. Enter an account name (any name that helps you recognize this connection later, e.g., "My Mailjet"), then paste the API Key and the Secret Key you copied from Mailjet into their respective fields.

Step 6. Click connect.
? That's it — your Mailjet account is now connected with FlexiFunnels. You'll see Mailjet listed under your connected autoresponders on the settings page.
Connecting Mailjet in settings is like plugging the cable in — now you need to tell FlexiFunnels where to use it. There are two places: your products (so buyers get added to your Mailjet list) and your form elements (so page visitors who opt in get added). Both are covered below.
Part 3 — Connect Mailjet to your Product (Set Rules)
Step 1. Navigate to the Products Tab — Click on the "Products" tab located in the top menu bar.

Step 2. Select Your Product — From the list, click on the product name you want to set up rules for to open its settings.

Step 3. Open the Set Rules Option — In the product settings menu on the left side, click on "Set Rules". A dialog box will open.

Step 4. Select Autoresponder — Select your connected Mailjet account from the "Select an autoresponder" dropdown menu.

Step 5. Add to a List — Choose the Mailjet list from the "Add them to this list" dropdown where buyers should be added.
Step 6. Set Autoresponder Tags (optional) — In the "Autoresponder Tags" field, add tags to organize your members (e.g., "buyer", "course-a"). Note: tags must be at least three characters long.
Step 7. Save Your Settings — Click the blue "Save" button at the bottom of the dialog box. Done — every buyer of this product will now flow into your Mailjet list automatically.
Part 4 — Connect Mailjet to a Form on your Landing Page
Step 1. A form lives on a landing page, and a landing page lives inside a project. So first, click on "Projects" on the FlexiFunnels dashboard, then click the "+Create New" button.

Step 2. Type your Project name and click on the "+ADD project" button.

Step 3. Select the Landing Page category — we have different template categories and different templates in each category.

Step 4. Select your preferred template. After selecting, the screen will look like this — your project with a landing page is ready. Now click the "Edit Page" button.

Step 5. Inside the editor, click on the sidebar "plus" button and select the "Forms" option under components to add a form to your page.

Step 6. Once the form element is on your page, click on the form element's gear icon to open the form settings, then click on Advanced Settings.

Step 7. Select the "Connect with autoresponder" option from the dropdown, then click the "Connect here" button. Select Mailjet (the account you connected in Part 2).

Step 8. Choose your email list from the dropdown (optional), and write the tag(s) to be passed in the autoresponder tags field (optional — you can pass multiple tags). Then click "Save". When successfully connected, it will show "Active."

Step 9. Now publish the landing page using the "Publish" button at the top, and start collecting leads.
The leads submitted on your published page will be directly reflected in the Mailjet list connected with the form element.
Common situations & quick fixes
"Invalid credentials" or the connection fails when I click Save.
Double-check three things: (1) the API Key and Secret Key are in the correct fields and not swapped, (2) there are no extra spaces before or after the keys, and (3) you copied the Secret Key from the same Mailjet account/popup where it was generated. If unsure, generate a fresh Secret Key in Mailjet and try again with the new pair.
I closed the Mailjet popup before copying the Secret Key.
No problem — the Secret Key just can't be viewed again, but it can be reset. In Mailjet, go to API Key Management, reset/generate the Secret Key, and a new popup will show you a fresh key. Use the new Secret Key in FlexiFunnels. (Note: if you had used the old Secret Key anywhere else, that connection will need the new key too.)
My Mailjet account has subaccounts — which key do I use?
Use the API Key and Secret Key of the account whose contact lists you want your leads to go into. Each Mailjet subaccount has its own key pair, and leads will only flow into the account whose keys you connect.
Mailjet is connected, but leads from my page aren't showing up in Mailjet.
Connecting Mailjet in Settings is only step one. Make sure you've also connected Mailjet to your specific form element (Part 4) or product (Part 3), selected the right Mailjet list, and — most importantly — published the page after connecting the form.
I want to remove or change the connected Mailjet account.
Go to Settings → Autoresponder Integrations, remove the existing Mailjet connection, then add it again with the new account's API Key and Secret Key.
Related articles:
- Autoresponder Integration (overview)
- Autoresponder Standard Integration
- How to collect leads from FlexiFunnels using Autoresponder in your Form Element
- Autoresponder Custom Form Parse Code
Still stuck? We're happy to help — Submit a ticket and our support team will get you sorted.
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