Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue


Sendinblue’s official plugin for WordPress is a powerful all-in-one email marketing plugin. At a glance:

  • Subscription forms – Create custom subscription forms and easily integrate them into your posts, pages or sidebars
  • Contact lists – Manage your contact lists and take advantage of advanced segmentation to improve your campaign performance
  • Marketing campaigns – Easily create and send beautiful newsletters using our mobile-friendly, drag and drop builder to create custom emails or select from our template library
  • Transactional emails – The wp_mail() function automatically uses Sendinblue’s SMTP for enhanced deliverability and tracking
  • Statistics – Real-time report dashboard gives you advanced insights into deliverability and performance: opens, clicks, bounce reports, etc.
  • Marketing automation – Enable Automation on WordPress to auto-install the script on your website and the identify tag on the Sendinblue forms and WordPress Login

Subscription Forms

  • Form designer with WYSIWYG and direct HTML / CSS editing (if desired)
  • Integration as widget or shortcode [sibwp_form]
  • Send a confirmation email – you choose the template and the sender
  • Use a double opt-in confirmation – you choose the template and the sender
  • URL redirection
  • Confirmation / error message customization

Contact Lists

  • Folder and lists management
  • CSV and TXT file import
  • Unlimited custom fields
  • Advanced segmentation. Example: Search for contacts who are less than 45 years who clicked links in my last 3 campaigns.

Marketing Campaigns

  • Responsive, drag and drop email design tools
  • Library of mobile-friendly, creative email design templates
  • Subject and content personalization. Example: Hello {NAME},
  • Inbox and design rendering tests for multiple devices and email clients
  • Schedule campaigns in advance

Transactional Emails & Statistics

  • Automatic replacement of default SMTP when you use wp_mail function
  • Create transactional email templates that are easy to reuse via the API
  • Real-time and exhaustive statistics: delivered, opened, clicked, etc.

Marketing Automation

  • Auto-installation of the automation script on your website
  • Auto-deployment of the identify tag for Sendinblue’s forms and WordPress plugin
  • Access to the Sendinblue online dashboard for workflow creation and management

Plugin Support

To get support, please send an email to, we will be happy to help you!

The plugin is available in English and French.


  • First, your are invited to create an account on Sendinblue then enter your API keys
  • The Homepage gives you an overall view over your campaigns and allows you to activate Sendinblue SMTP for all transactional emails and Marketing Automation to better target your customers
  • The Forms page gives you access to your forms list
  • When you click on a specific form, you can configure your sign up process and customize it
  • The Statistics page gives you a global view over your performance: delivered, opened, clicked, etc.
  • From the Widget page, you are able to add the Sendinblue widget in one or more sidebars. For each form, you can choose the fields displayed and the list where contacts are saved.
  • The Workflows page (Marketing Automation activated) allows you to create new workflows in Sendinblue or access your logs or existing workflows


  1. In your WordPress admin panel, go to Plugins > New Plugin, search for “Sendinblue for WP” and click “Install now”. Alternatively, download the plugin and upload the contents of to your plugins directory, which may be /wp-content/plugins/.
  2. Activate the Sendinblue plugin through the ‘Plugins’ menu in WordPress.
  3. The “Sendinblue” tab must appear in your WordPress side navigation panel, then set your Sendinblue API key in the plugin homepage.

To get a Sendinblue API key, you have to create an account. It’s free and takes less than 2 minutes!


What is Sendinblue?

Sendinblue is a powerful all-in-one marketing platform. Over 165 000 companies around the world trust Sendinblue to deliver their emails and SMS messages.
Sendinblue combines competitive pricing and excellent deliverability & powerful features such as Email, SMS, Facebook, Chat, CRM, and marketing automation.
Sendinblue is available and supported in 6 languages: English, French, Spanish, German, Italian, and Portuguese.

Why use Sendinblue as an SMTP relay for my website?

By using Sendinblue’s SMTP, you will avoid the risk of having your legitimate emails ending up in the spam folder and you will have statistics on emails sent: deliverability, opens, clicks, etc. Sendinblue’s proprietary infrastructure optimizes your deliverability, enabling you to focus on your content.

Why do I need a Sendinblue account?

The Sendinblue for WordPress plugin uses Sendinblue’s API to synchronize contacts, send emails and get statistics. Creating an account on Sendinblue is free and takes less than 2 minutes. Once logged into your account, you can get the API key, and you can send up to 300 emails / day on the free (forever) plan.

Do I have to pay to use the plugin and send emails?

No, the plugin is totally free and Sendinblue offers a free forever plan with 9,000 emails per month. Additionally, Sendinblue comes with unlimited contacts (including on the free plan), so there is no hidden cost.
If you need to send more than 300 emails / day, check out our pricing. Paid plans start at $25 / month to send up to 10 000 emails / month with no daily sending limit.

How do I get my get synchronize my lists?

You have nothing to do – synchronization is automatic! It doesn’t matter whether your lists were uploaded on your WordPress interface or on your Sendinblue account: they will always remain up-to-date on both sides.
Sendinblue also integrates with most lead capture and advanced form builder plugins.

How can I get support?

If you need some assistance, you can post an issue in the Support tab, or send us an email at

How do I create a signup form?

In order to create a signup form, you need to:
1. Go to Wp admin > Sendinblue > Settings in order to define your form’s fields and settings
2. Integrate the form in a sidebar using a widget from WP panel > Appearance > Widgets. The Sendinblue widget form should appear in your widgets list, you just to have to drag and drop the widget into the sidebar of your choice.


11 November 2021
It don´t get the forms did in the it is not site builder friendly like elementor Very limited options no design tools I would be ashamed to offer this as a tool.
26 October 2021
Il est impossible de mettre 2 formulaires Sendinblue différents sur la même page.... Lors de la soumission d'un des formulaires, les deux sont soumis, il faut donc remplir les deux formulaires de la page pour que ça fonctionne.... ReCaptcha V3 n'est toujours pas géré non plus et quand bien même vous désactivez ReCaptcha sur le formulaire, si vous avez un formulaire tierce (CF7 par exemple) avec ReCaptcha sur la même page qu'un formulaire Sendinblue, la soummission de ce dernier provoque une erreur JS car il ne trouve pas la variable de configuration ReCaptcha de Sendinblue (et pour cause, ReCaptcha est désactivé sur le formulaire sendinblue...) gCaptchaSibWidget is not defined
21 October 2021
This plugin is just perfect. The free version could help you to manage 1,000 contact. I think is low. Could it be more, but after all is free. I really like it. And help you to convert your trafic and gain money.
21 October 2021
This thing is terrible. Nothing is clear or intuitive. The simplest things are impossible, confirmed by tech support. We just wanted to add an email sign up to our many Contact Form 7 forms, and use the double opt-in required by GDPR. But no can do. Meant to have 300 free credits / day, but has zero, so won't even send the test message. Wasted a lot of time on this. It's also narrowly commercially oriented. The creators don't seem to be able to imagine that there are organisations which are not 'companies', and organisations that want to create email lists without calling it 'marketing'.
3 October 2021
Been using sendinblue mainly as a prop for better deliverability / SMTP. But been using their form and workflow builders recently and they seem nicer /easier to use with slick outcomes on the front end. Prompted to write this review after some good customer service but actually their support has been great the whole few years I've been with 'em.
3 September 2021
I installed Newsletter, SMTP... plugin and connected it to Sendinblue SMTP platforme it works greatelly and the support staff are professional and quick reactif. So thanks to you Sendinblue's team ! I'm a WordPress developper, user and fan.
Read all 191 reviews

Contributors and Developers

“Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue” is open source software. The following people have contributed to this plugin.


Change Log


  • Fixed an issue related to contact attributes not updating via DOI confirmation.
  • Fixed an issue related to an error message which not translated into French.


  • Enhanced the security of website tracking via automation by skipping the password field from the forms.


  • Improved the content of test email.
  • Fixed an issue related to slowness of plugin because of a mysql query.


  • Fixed an issue with all templates on Sendinblue account not showing on plugin configuration.


  • Fixing issue with plugin deactivation on update.


  • Fixing issue with plugin deactivation on update.


  • Modified permissions of mailin.php.


  • Fixed some reported bugs related to internationalization (i18n)
  • Fixed an issue with DOI email and confirmation email sent at the same time.


  • Enhanced the plugins to be compatible upto PHP version 8
  • Enhanced the plugin to be compatible upto WordPress version 5.8



  • Fixed some minor issues related to double optin subscription
  • Removed legacy code corresponding double optin subscription



  • Improve technical performance of the plugin



  • The subscribed contact from a double optin form would be created or updated on Sendinblue platform only on clicking the double optin link in the confirmation email.
  • Removed the default message for Existing subscribers



  • Improved technical performance of the plugin



  • Improved technical performance of the plugin



  • Fixed few minor bugs and notices



  • Fixed an issue related to transactional email getting distorted.



  • Fixed the issue of email not being sent to recipient in cc or bcc.



  • Improved technical performance of the plugin


Bug fixes

  • Fixed the unwanted backslash issue when adding apostrophe in text field at forms or at forms settings.


Bug fixes

  • Fixed the unwanted backslash issue when adding apostrophe in text field at forms or at forms settings.
  • Fixed the Missing/Invalid Parameter errors in response from API when sending transactional.


Bug fixes

  • Fixed an issue related to auto-creation of DOI list in FORM folder.


Bug fixes

  • Fixed an issue related to empty attachment while sending transactional mailing


Bug fixes

  • Improved plugin stability and performance.



  • Removed data validation so that DD-MM-YYY format is accepted as well
  • Improved monitoring of plugin technical performance
  • Updated WordPress Repository content by adding FAQ section


Bug fixes

  • Fixed the blank/suspicious mail content with PDF attachments.
  • Headers are visible on statistics page even if data is not available.



  • Fixed critical errors for PHP Mailer triggered for WordPress version 5.5 and beyond

  • Transactional mails with attachment issue has been fixed



  • Mapping contact attribute

  • Added partner via API V3 to users collection

  • Re-subscriptions with DOI flow



  • Updated Translations

Bug fixes:

  • Custom redirection URL for DOI mailings


Bug fixes:

  • Compatibility issue with Gravity Forms which was affecting transactional mailing


Bug fixes:

  • Multi-list selection
  • Recipients boolean attributes


  • Some Improvements


  • Bug fixes & improvements


  • Bug fixes & improvements


  • Fix login process with api v3 key


  • [Improvement] Migrated the plugin from API v2 to API v3
  • [Improvement] Removed iframe (due to security reasons)
  • [More details] No changes in features (Contact sync, transactional mailing, marketing automation, forms)
  • [More details] New version has only 3 tabs: Home, Forms, Statistics
  • [More details] Tabs with iframe (lists, campaigns) were removed