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  • Setting Up Sendinblue Mailer in Fluent SMTP

Setting Up Sendinblue Mailer in Fluent SMTP

Table of Contents
  • Configuring Fluent SMTP for SendInBlue
  • How to get SendInBlue API Key:
  • Send a Test Email
  • Frequently Asked Questions

You can use Sendinblue to improve your WordPress site email deliverability? Sendinblue is one of the leading mailer options for WordPress, SendinBlue is reliable and easy to set up. In this article, you will learn how to use Sendinblue mailer with Fluent SMTP.

Configuring Fluent SMTP for SendInBlue #

Hover over settings and go to Fluent SMTP Dashboard. If this is the first time you are using Fluent SMTP you will see the list of available Mailer, go ahead and select SendInBlue.

Configuring Fluent SMTP for SendInBlue

After selecting SendInBlue as the mailer, a very simple settings window will open as shown on the screenshot below.

Sendinblue Fluent SMTP

As I said, This is as simple as setting up the “From Email”, “From Name” and API Key and clicking the save button.

From Email: The “From Email” should be the email you verified with SendInBlue. Check the box to set the return path to match the from. The Return Path indicates where non-delivery receipts – or bounce messages – are to be sent. If unchecked, bounce messages may be lost. With this enabled,
you’ll be emailed using “From Email” if any messages bounce as a result of issues with the recipient’s email.

From Name: From name can be anything you want. The best practice is to use the combination of your name and company name. For example, I would choose something like “Jewel From WPManageNinja” where Jewel is the first name of the CEO and WPManageNinja is the company. The API key will be provided by SendInBlue.

How to get SendInBlue API Key: #

Log into your SendInBlue account first and then click on the account icon located at the top right corner. A dropdown panel will appear and you need to click on the SMTP & API.

How to get SendInBlue API Key

Now create a new V3 API key or use an already existing API Key.

Sendinblue API Key Fluent SMTP

Go back to your Fluent SMTP’s SendInBlue configuration panel and enter the API key and your SendInBlue Driver is ready to impact for transactional emails.

Send a Test Email #

Go to the Email Test Tab and type a from email. This should be the same “From Email” of your SendInBlue setup. This is optional and you can leave it blank also. in that case, the default SMTP Driver will be used. If you get a success message as shown below then your SMTP setup is up & running.

send test email from Fluent SMTP

Frequently Asked Questions #

How to fix “[permission_denied]:Unable to send email, Your SMTP account is not yet activated”? #

This error states that your SendInBlue account is not activated yet. To fix the issue, get in touch with the SendInBlue team. After signing up with SendInBlue you also need to activate the SendInBlue account.

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Updated on January 18, 2021
Connect Gmail or Google WorkSpace Emails with FluentSMTPConfigure Mailgun in Fluent SMTP to Send Emails

22 Comments

  1. marco says:
    May 20, 2021 at 9:42 pm

    Hi,
    Whenever I sent a test email it always says ‘mail delivered succesfully’ even when it was send to a non existing email address. Shouldn’t it report as being bounced then?

    Reply
  2. Gregg Schroeder says:
    June 3, 2021 at 6:45 pm

    Hello, I’m struggling to use SendinBlue and FluentSMTP. I set up everything in SendinBlue and added the TXT dns records and authenticated them for our site, mail.solarset.com (was this necessary?)

    And when I send a test email from FluentSMTP, it sends fine, but nothing shows up in the fluentSMTP email logs. At all, ever.

    And I do see this warning at the top of my wp site management

    The FluentSMTP plugin depends on wp_mail pluggable function and plugin is not able to extend it. Please check if another plugin is using this and disable it for FluentSMTP to work!

    Possible Conflict: /home4/solarset/public_html/wp-includes/pluggable.php:171

    Reply
    1. Nazir Himel says:
      June 23, 2021 at 4:48 am

      looks like a plugin conflict to me. Please contact our support

      Reply
  3. Scott T says:
    June 28, 2021 at 8:19 pm

    Very easy to set up and worked immediately. Thanks for the great tutorial.

    Reply
  4. Jose Luis says:
    July 29, 2021 at 5:05 pm

    Hello
    I have just installed your plugin and I am trying to configure the connection to Sendinblue as per your documentation and I see two fields related to the API code.
    One is :Store API Keys in DB” and the other one “Store API Keys in Config File”
    The later one states that I have to copy this: define( ‘FLUENTMAIL_SENDINBLUE_API_KEY’, ‘********************’ ); to wp-config.php
    Since this is not indicated in your documentation, I wonder if this is strictly necessary
    Thanks

    Reply
    1. Nazir Himel says:
      July 30, 2021 at 8:49 am

      You can either configure an email service from the UI itself or add the string to the WP config. Using any method works. However, if you’re not familiar with wp-config.php, I recommend leaving it untouched.

      Reply
  5. Neil S Yanto says:
    August 2, 2021 at 2:05 am

    I sent a test email and always says ‘mail delivered successfully but I don’t receive any emails coming from the test email of sendinblue.

    Reply
    1. Nazir Himel says:
      August 2, 2021 at 6:36 am

      I myself configured Sendinblue and it takes a bit of time for the first email. I’m not sure why it happened but its slow for the first email.

      Reply
      1. Neil S Yanto says:
        August 2, 2021 at 10:26 am

        I wait for 24 hours If I will receive the email coming from the Sendinblue text email. But nothing. I don’t know what is the problem is.

        Reply
        1. Nazir Himel says:
          August 5, 2021 at 10:50 am

          Please submit a support ticket for technical assistance.

          Reply
  6. Hrishikesh says:
    September 2, 2021 at 5:14 pm

    My domain is authenticated.
    I have set up fluent smtp and copied and pasted ur api key in fluent smtp as per instruction.
    But my emails are failing and it show your send in blue account is not activated yet (my domain and email both are authenticated and verified respectively in my send in blue account).

    Reply
    1. Nazir Himel says:
      September 7, 2021 at 1:39 pm

      Hi Hrishikesh,
      Not sure why this is happening. Could you please submit a support ticket so our team can take a look? https://wpmanageninja.com/support-tickets/

      Reply
  7. Rachel says:
    September 9, 2021 at 3:04 pm

    Hi. I have entered my sendinblue API key a couple of times, and received a failure error in my FluentSMTP plugin dashboard when trying to test (and my log says all “failed”) that says just “key not found”.

    Does that mean the API key? As said, it’s entered.

    Any other thoughts on where my configuration might be wrong?
    Thanks!

    Reply
    1. Nazir Himel says:
      September 11, 2021 at 10:06 am

      Hi Rachel, maybe you haven’t inserted the right API key. Please ensure that your email address is verified and insert the right API key. If it still doesn’t work, you can submit a support ticket so that our technical experts can take a look. 🙂

      Reply
  8. Mandar says:
    September 16, 2021 at 3:11 pm

    Hello,
    The plugin works well with SendInBlue except that the emails go out unformatted without any line breaks. Whereas the FluentSMTP test email comes in neatly formatted. Where do I format the emails? (Notification emails sent from WordPress when a new user signs up or when they receive a password reset link, etc)

    Reply
    1. Nazir Himel says:
      September 22, 2021 at 6:55 am

      Hi Mandar, this needs to be tested. Please submit a support ticket: https://wpmanageninja.com/support

      Reply
  9. Maria says:
    October 28, 2021 at 6:01 am

    How are bounces handled with Sendinblue&FluentCRM? Do they display in the CRM as bounces by default?

    Reply
    1. Nazir Himel says:
      October 28, 2021 at 6:21 am

      Hi Maria, There’s no bounce handler for Sendinblue.

      Reply
  10. Charlie says:
    November 28, 2021 at 7:08 am

    I had first set up sendinblue API successfully. Afterward, I noticed the Fallback recommendation on a drop-down menu. I had noticed that I also had SMTP credentials in my new sendinblue account, so I thought I could use that. After completing its setup in “Other SMTP”, that SMTP setup replaced my original API setup in Fluent, saying that I could only use the email on one account. So is it necessary to have 2 independent ESP accounts in order to use a Fallback?

    Reply
    1. Nazir Himel says:
      November 29, 2021 at 4:07 am

      Hey Charlie, Yes. Fallback emails are usually handy if your primary email service isn’t working. So there’s no point in setting up multiple email addresses with Sendinblue.

      Reply
  11. Sebastian says:
    December 15, 2021 at 6:58 pm

    Hi!

    I always get ther massege “invalid email adress” after sending the test email.
    I have set up sendinblue including the API key. But there’s nothing sent.
    How can I fix that?

    Regards
    Sebastian

    Reply
    1. Nazir Himel says:
      December 17, 2021 at 5:45 pm

      Hi Sebastian, this might require troubleshooting. Please contact our support.

      Reply

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Table of Contents
  • Configuring Fluent SMTP for SendInBlue
  • How to get SendInBlue API Key:
  • Send a Test Email
  • Frequently Asked Questions
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