Setup Outlook with FluentSMTP

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Having trouble sending emails from WordPress using your Outlook/Office365 account? We’re here to help! This is a step-by-step tutorial on setting up Outlook or Office365 API with WordPress.

Configuring Fluent SMTP with Office 365 Emails #

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 Microsoft.

If you already have one or multiple SMTP driver setups and now you want to add Office 365 also then go to the Settings Tab of Fluent SMTP and select Add New Connection. Now again all the available mailers will appear from where you need to select Microsoft.

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

In this part, you need to set up “From Email“, “From Name“, “Application Client ID” and “Application Client Secret” and click the save button.

From Email: The “From Email” should be the email you verified with Microsoft.

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 Application Client ID and Application Client Secret will be provided by Microsoft.

How to get API Key and Secret #

Click on the App Registration Link
  • Click on “New Registration” Button
  • Fill Up the form
  • Copy the application ID and paste in FluentSMTP as Application Client ID
  • Go to Certificates & secrets and Create a Client Secret
  • Copy the value and paste in FluentSMTP as Application Client Secret

Then click on the “Authenticate with Office365 & Get Access Token” button in FluentSMTP and you will be asked to authenticate the app and after complete the process you can see the screen like this

Copy the access code and paste in FluentSMTP

Then click Save Connection Settings.

That’s it. Now you can send your WordPress emails using Office365 Mail API.

What are your Feelings

24 Comments

    1. Yeah, but beware of spam and the website’s responsiveness issue. Email clients may not take this positively.

      Reply

  2. Hello,
    I setup the fluent SMPT and the email works fine. After a couple of hours I receive error “{
    “code”: 423,
    “message”: “CompactToken parsing failed with error code: 80049217”,
    “errors”: [
    “CompactToken parsing failed with error code: 80049217″
    ]
    }”
    I make a reauthentication, it works, but after an hour I issue the same error.

    Can someone knows how to fix it?

    Reply

  3. Hello
    I set up with Outlook/Office365 API Settings I got an error on below.

    “code”: 423,
    “message”: “The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account., Cannot submit a message.”,
    “errors”: [
    “The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account., Cannot submit a message.”
    ]

    Could you tell me to fix this?

    Reply

    1. Hi Faye,
      I guess you haven’t verified the email that you have used to setup Outlook/Office365 SMTP. Can you please verify an email address in your Microsoft account and try again.

      Reply

      1. Please disregard my email, I’ve re-created the secret and now it seems to work perfectly.

        Thank you again for your fluentSMTP, its fantastic!

        Reply

  5. Hi I authenticated the Office365 account successfully but when I try a test I get this error:
    “The mailbox is either inactive, soft-deleted, or is hosted on-premise.”
    Can you help?

    Reply

  6. I was using the free version of WP Mail SMTP and when I installed Fluent SMTP it imported the PHP settings. Is it okay to have the PHP mail and Outlook settings at the same time or should I delete the PHP record once I’ve connected Office 365/Outlook?

    Reply

    1. Hi Paul, FluentSMTP normally imports your primary email configuration. And in this case, PHP was your primary email configuration. You can keep using both PHP and Outlook. Just select the default connection you want to use.

      Reply

      1. Is there a specific help for how to do this? I looked around and could not find anything.

        For example, I have email@domain2.com set up as an alias for email@domain1.com. But any emails sent via FluentSMTP are sent from email@domain1.com, despite email@domain2.com being configured in the settings.

        I could convert email@domain2.com into a Shared Mailbox if it would work better.

        Thanks for your help. I just discovered this plugin and it looks great so far.

        Reply

      2. Can you provide some direction on how to set it up to send from an alias or sharemailbox?

        I’m not seeing how to do this.

        Reply

  9. Disable duplicate outgoing messages.

    Sorry for the English, I use a translator.
    Tell me how to make sure that the mail that is sent from the site is not displayed or duplicated in my outgoing messages in the mail client. I don’t need her there. I use Outlook mail.

    Reply

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